T-cells that remember cancer for decades — how it works
Nature Medicine · 6 min
Neuroscience
Sleep clears the brain's waste — what teens risk
NIH · Tevinly Digest · 5 min
Longevity
Why VO2 max predicts lifespan better than blood pressure
Huberman Lab · 4 min
9:41
長者健康 · Family Care
爺爺 Grandpa Wong
H
72
bpm
BP
118/76
mmHg
O2
98%
SpO2
Rx
食朝早藥 Morning meds
3/3 - 語音提示已開
OK
Walk
行路15分鐘 15-min walk
公園 Tai Chi park - 10am
...
🍱
低鹽午餐 Low-sodium lunch
餐單 Diet plan · 12pm
...
18
JUN
陳醫生 Dr. Chan - 心臟科
瑪麗醫院 Queen Mary Hospital - 10:30am
One platform · Everything connected
A prospective all-in-one platform for students, science, and family care.
From GPA tracking to elderly medication reminders — every feature built with the same intention.
🎯 GPA Tracker⏱ Focus Timer📅 168hr Planner💰 Finance Dashboard😴 Sleep Tracker🏃 Exercise Log🧠 AI Study Coach📊 Progress Rings🎯 GPA Tracker⏱ Focus Timer📅 168hr Planner💰 Finance Dashboard😴 Sleep Tracker🏃 Exercise Log🧠 AI Study Coach📊 Progress Rings
🧬 Science Comics📰 Research Digest👴 Elderly Health Guides🗣 Cantonese Content🤝 Caregiver Support💊 Medication Guides🌿 Longevity Protocols🧬 Science Comics📰 Research Digest👴 Elderly Health Guides🗣 Cantonese Content🤝 Caregiver Support💊 Medication Guides🌿 Longevity Protocols
Three pillars
Clarity for students. Science for everyone. Dignity for the elderly.
Demo
01 — Science communication
Translating research into language people can actually use.
A bi-weekly newsletter covering cancer biology, immunology, neuroscience and longevity — plus 3-panel science comics that make the hard stuff land. If people don't understand science, they can't support it, fund it, or act on it.
Bi-weekly newsletter
3-panel comics
Plain-language explainers
Prototype walkthrough soon
02 — Elderly health · 長者健康
Cantonese-first health guides for Hong Kong's elderly.
Hong Kong's health system still defaults to English. Tevinly writes clear, Cantonese-first guides and visual comics for low-literacy readers and the caregivers who love them — inspired by real volunteering with elderly communities.
廣東話內容 · Cantonese-first
Visual comic format
Built for caregivers too
Prototype walkthrough soon
03 — Youth Life OS
An AI dashboard for the student spinning too many plates.
Academics, health, focus and goals in one place. Built because I was that student — ambitious, scattered, and wishing for a single calm surface to think from.
Academics + health + focus
AI-assisted planning
One calm surface
Prototype walkthrough soon
✦ Early Access
Be the first to try the demo prototype.
Join the waitlist. Shape the product. No spam, ever.
Free during beta · No commitment required
✦ Maximize Productivity
Your life, structured.
Tevinly Student is an AI-powered command centre for ambitious students — tracking academics, health, side projects, and time, all in one warm, calm interface.
The Tevinly Dashboard
A 168-hour weekly life planner with health tracking, GPA monitoring, side quest progress, gamification, and an AI agent — designed with Apple-level minimalism inside a dark glass aesthetic.
Tevinly
🏠 Dashboard
📚 Academics
🏃 Health
⚡ Side Quests
⏱ Time
📅 Planner
🤖 AI Agent
⚙️ Settings
Warm, calm LifeOS for ambitious students
30 May 2026 · Saturday
Level 3🔥 0d streak
Focus Score
86%
↑ 4% from last week
Next Exam
12d
Linear Algebra
GPA
3.82
4 subjects active
XP Points
0
+50 today
XP Progress to Level 40 / 100
Health Tracking
7h40
Sleep
45m
Exercise
6h20
Focus
Life Balance
Side Quests
·
Review Linear Algebra notes+10
·
45-min workout 🏃+15
·
2hr deep work session 🔥+20
168hr Vertical Planner (Today)
92% Focus Score
09:00
Linear Algebra Lecture Focus: High
10:00
11:00
Morning Workout Completed ✓
12:00
13:00
Deep Work: Cog Sci Paper Timer active... 1h 45m remaining
14:00
15:00
16:00
📚
Academic Tracking
GPA monitoring, exam countdowns, study hour targets, and subject-by-subject progress.
⚡
AI Scheduling Agent
Ask your dashboard questions — get answers based on your actual data and patterns.
💰
Side Quest Tracker
Income projects, app builds, personal goals — tracked alongside academics, not separately.
🏃
Health & Focus
Sleep, exercise, hydration, deep work — because a healthy student is a productive one.
✦ Scientific Communication
Understanding Science Accelerates Science.
When research is made accessible, it doesn't just educate — it compels action. From public health decisions to venture capital, science communication is the invisible infrastructure that multiplies every dollar invested in discovery. This is especially critical for Hong Kong.
Awareness is the Beginning of Behaviour Change
Rooted in the COM-B behavioural model — if people don't understand, they can't act.
$240B
global biomedical R&D spend in 2023 — yet most breakthroughs never reach the public.
[1] Tevinly
14 yrs
average lab-to-patient drug development time.
[2] Tevinly
~40%
of cancers are preventable with lifestyle changes.
[3] Tevinly
10×
more active brain waste clearance during sleep vs. awake.
[4] Tevinly
✦ Interactive Article Demo
Experience how we translate complex Nature papers into understandable, actionable content.
🔬 Nature 2026 — New Discovery
Your Blood Has a Memory of Every Infection You've Ever Had
Scientists just discovered that the master cells of your blood can remember stress — even years later. Here's what that means for ageing, COVID-19, and cancer.
🧓 Friendly for Seniors🎓 Great for Students
Section 1 of 4
🏠 Start Here — What Are Stem Cells?
Think of Your Bone Marrow as a Blood Factory
Inside your bones, right now, there is a tiny factory. It makes 3 million blood cells every single second. That's more than 250 billion cells a day!
🍪 Everyday Analogy
Imagine a cookie factory. The recipe cards are your stem cells — they hold the instructions. Workers read the cards and bake cookies (make blood cells). The recipe cards stay put and never get used up.
These recipe cards — called haematopoietic stem cells (HSCs) — are the most important cells in your blood system. One HSC can make red blood cells, white blood cells, platelets — anything the body needs.
📖 Haematopoietic stem cell (HSC): "Haematopoietic" means "blood-making." These rare cells live in bone marrow and can become any type of blood cell. You have roughly 50,000–200,000 of them. Tap again to close.
🔥 What Happens When You Get Sick?
Infection Sounds an Alarm in Your Whole Blood System
When bacteria or a virus invades, your body releases alarm signals called cytokines. Two famous alarms are TNF and LPS — the body's fire alarms.
📖 Cytokines: Chemical messengers cells use to communicate. During infection, they shout "EMERGENCY!" and wake up immune cells everywhere. TNF (Tumour Necrosis Factor) is one of the loudest. Tap again to close.
The Alarm Chain
🦠
Infection arrives
Bacteria, virus, or other pathogen enters your body
🔔
Alarm signals released
Immune cells release TNF, LPS, and other cytokines — the fire alarm goes off
🔬
Stem cells wake up
The alarm signals reach bone marrow. Stem cells that were resting start dividing fast
💪
More defenders made
White blood cells flood out to fight the infection. Body is in battle mode
🏭 Factory Analogy
If the factory catches fire, the boss shouts "MAKE MORE FIRE TRUCKS!" All the recipe cards wake up and start producing fire engines (immune cells). After the fire, scientists wondered: does the factory remember the fire?
🔭 What Scientists Did
A Global Team Ran a Bold Experiment
Researchers from Canada, the UK, and the US asked a daring question: After an infection is over and everything seems back to normal, have stem cells truly "forgotten" the stress?
They took human stem cells and transplanted them into specially prepared mice (called xenograft models). Then they triggered controlled inflammation — twice — and waited months.
📖 Xenograft model: "Xeno" means foreign. Scientists transplant human cells into specially bred mice that won't reject them. It's the gold standard for studying how human cells behave without experimenting on people. Tap again to close.
💡 The Big Discovery
Some Stem Cells "Remember" — Even Months Later
When they examined the stem cells months after inflammation had passed, they found two completely different types of HSCs:
HSC-I
Normal
Forgot the stress. Business as usual.
VS
HSC-iM
Memory
Still carrying molecular marks of past inflammation.
📸 Analogy
Like finding old war veterans and rookies in the same squad. The veterans (HSC-iM) are still on high alert — their DNA has permanent notes written in it from the battle. The rookies (HSC-I) are fresh and calm.
The memory cells — named HSC-iM (inflammatory memory) — had different chemical markings on their DNA. These marks changed which genes were active, keeping the cell in a kind of "alert standby" mode.
🌍 Why This Is Real — Not Just Lab Mice
The Same Memory Appears in Real Human Patients
😷
COVID-19 Survivors
People recovering from severe COVID-19 had far more HSC-iM cells — even 2–4 months after leaving intensive care.
👴
Elderly Adults
Older people (60–90 yrs) naturally accumulate more HSC-iM cells. Years of small infections add up.
🩸
Sickle Cell Disease
Children with this blood disorder also show elevated HSC-iM — their cells experience chronic inflammation from birth.
⚠️
Clonal Haematopoiesis
Mutations linked to leukaemia risk also concentrate in HSC-iM cells — a key link to blood cancer development.
🧬 How Memory Is Written in DNA
The Molecular "Sticky Notes" That Don't Wash Off
DNA carries our genes — but which genes are "turned on" or "off" depends on chemical marks attached to the DNA. This field is called epigenetics.
📖 Epigenetics: "Epi" means "above." Epigenetic changes sit on top of the DNA sequence itself without changing the letters. Think of the DNA as a book — epigenetic marks are like highlighters and sticky notes that tell the cell which chapters to read. Tap again to close.
How Inflammatory Memory Works
1. First infection hits
Inflammatory signals (TNF, LPS) flood the bone marrow and activate genes that help the body fight.
2. Epigenetic marks are left behind
Certain sections of DNA are chemically "opened" — made more accessible. The cell's landscape has changed. Specific proteins (AP-1 family, NF-κB) leave permanent footprints.
3. Infection clears — but marks stay
The body recovers. Blood counts return to normal. But the epigenetic marks on some stem cells do NOT disappear — this creates HSC-iM.
4. The stem cell stays in "alert mode"
HSC-iM cells are quieter (more quiescent), slower to divide, and pass their inflammatory memories to their daughter cells — including immune cells in the blood.
🧩 Why Does This Matter for Health?
Three Major Health Connections
🕰️ Ageing & "Inflammageing"
As we get older, we accumulate decades of small infections, injuries, and stresses. Each time leaves a little more epigenetic "scar tissue" on our stem cells. Scientists believe this is why elderly people have more HSC-iM and why their immune systems work differently. The buildup of HSC-iM in blood cells was statistically linked to a higher risk of death from all causes in large population studies.
🩸 Blood Cancer Risk
Some people develop mutations in their stem cells (called clonal haematopoiesis) as they age. These mutations are found predominantly in HSC-iM cells. The mutations seem to "rescue" the overly-quiet memory cells and make them proliferate more. In some cases, this can eventually progress toward leukaemia.
🔄 Memory Passed to Children Cells
HSC-iM cells pass their inflammatory memory to the immune cells they produce — even monocytes and other white blood cells in circulating blood show the memory program. This may help explain why some people respond differently to new infections based on their history.
🔭 What Comes Next?
The Research Opens Exciting New Directions
This study is published in Nature (2026) — the world's most prestigious science journal. It suggests:
A blood test measuring HSC-iM levels could predict health risk
Drugs that "erase" the epigenetic memory could help aging-related blood disorders
Understanding COVID-19 long-term effects on blood stem cells
Targeting HSC-iM to prevent leukaemia before it develops
🧠 Quiz Time!
See What You've Learned
Try each question — no pressure! Tap an answer to see if you got it right.
Your score: 0 / 5
1. Where are haematopoietic stem cells (HSCs) found?
2. What did scientists name the stem cells that retain memory of past inflammation?
3. What kind of "marks" carry the inflammatory memory in stem cells?
4. Which group of patients was found to have MORE HSC-iM cells in their blood?
5. How many blood cells does your bone marrow make per second?
🎉 You're a stem cell expert!
You just understood a discovery published in Nature — one of the world's top science journals. Science literacy like this helps you make better decisions about health, and maybe even inspires a future researcher!
Curated scientific updates in plain language — delivered to curious minds across HK.
🌏
Local & Global
Cancer immunology to public health — always relevant to Hong Kong communities.
🇭🇰 以廣東話撰寫 · Cantonese-first
長者健康平台 · Care for the Elderly
醫療資訊， 人人都明白。
根據真實照顧者經驗而建 — Tevinly 長者平台以廣東話，為香港長者及家人提供清晰、易明、可行動嘅健康資訊。 Built on real caregiver research — clear, actionable health information for Hong Kong's elderly and their families.
COM-B 行為改變模型 · Behaviour Change Model
行動改變，由理解開始。人唔明，就唔會行動。 People don't act on what they don't understand. Tevinly removes the barriers to health information.
C
Capability 能力
提供清晰廣東話資訊，令長者明白自己嘅健康狀況同需要採取嘅行動。 Clear information in Cantonese so elderly patients understand their own health.
O
Opportunity 機會
提供熱線、指南同社區資源，確保幫助唾手可得。 Hotlines, guides, and community resources to make help accessible.
M
Motivation 動力
以視覺漫畫同真實故事激勵行動，而唔係用恐懼或技術術語嚇人。 Visual comics and real stories inspire action — without fear or jargon.
✦ 健康漫畫 · Health Comics
醫療資訊以簡單漫畫呈現，專為識字能力較低同唔熟悉數碼工具嘅長者設計。 Medical information as simple comics — designed for elderly users unfamiliar with digital tools.
大腸癌預防
大腸鏡檢查係咩嚟㗎？
😴
你會瞓覺，唔會痛 · You'll be asleep, no pain
🔭
醫生用細管睇大腸內部 · Doctor views the colon with a thin tube
⏱️
大約30分鐘完成 · About 30 minutes total
✅
早發現，早治療 · Early detection saves lives
心臟健康
血壓高，點算好？
🧂
少鹽飲食係第一步 · Reduce salt — the first step
🚶
每日行路30分鐘 · Walk 30 minutes daily
😌
減少壓力，好好瞓覺 · Reduce stress, sleep well
💊
定時食藥，唔好自停 · Take medication regularly, don't stop
照顧者支援
照顧癌症病人，家屬要知道…
🤝
唔需要一個人捱 · You don't have to do it alone
📞
社工熱線隨時可call · Social worker hotlines available anytime
🍱
社區送餐服務可申請 · Community meal delivery available
❤️
你嘅感受同樣重要 · Your feelings matter too
點樣睇私家醫生？一步一步教你
How to see a private doctor — A step-by-step guide for elderly patients and their families.
1
📋
預約 · Book
打電話或用APP預約，告知病情及有冇長期病患。 Call or use app to book. Mention your conditions.
2
📁
帶齊文件 · Documents
身份證、醫療卡、化驗報告同藥物清單。 ID, medical card, past reports, and medication list.
3
🗣️
同醫生講清楚 · Speak Up
唔明可以問，可以帶家人陪同，唔需要覺得麻煩。 Ask questions. Bring family. Never feel like a burden.
4
💊
跟足醫生指示 · Follow Through
定時食藥，有副作用告知醫生，唔好自己停藥。 Take medication as directed. Report side effects. Never stop alone.
✦ 香港健康熱線 · Health Hotlines
Important numbers for elderly patients and their caregivers in Hong Kong.
癌症病人及照顧者情緒支援及資訊查詢服務 Emotional support & information for cancer patients and caregivers.
🤝
社區照顧服務熱線 · Social Welfare Dept
2343 2255
社會福利署 · 長者社區支援及送餐服務申請 Community support and meal delivery applications for the elderly.
🧠
精神健康熱線 · Mental Health
2382 0000
24小時危機介入及精神健康支援 · 免費服務 24-hour crisis intervention and mental health support. Free.
🖼️
AI 健康漫畫
醫療資訊以簡單漫畫呈現，專為識字能力較低嘅長者設計。 Visual comics for low-literacy elderly users.
👨👩👧
照顧者支援
為管理慢性病嘅家庭提供資源，源於真實照顧者研究。 Resources grounded in real caregiver research.
✅
核實資訊
所有健康內容均經核實 — 無誤導，無恐嚇，只有清晰正確嘅健康指引。 Verified content — no misinformation, no fear tactics.
🇭🇰
香港優先
專為香港長者設計 — 廣東話為主，文化相關，符合本地需要。 Cantonese-first, culturally relevant, built for HK.
Why I built Tevinly
The gap between science and the people who need it has always bothered me. Tevinly is my attempt to close it.
On Productivity: I spent years building my own spreadsheets, focus systems, and tracking tools just to stay on top of my goals. I realised the same infrastructure that helped me could help every student who feels like they're spinning plates without a plan. Students deserve a better learning ecosystem — one that's intentional, calm, and actually built for how we live.
On Scientific Communication: I kept seeing a gap — brilliant findings locked behind paywalls and dense jargon, never reaching the people who needed them most. I wanted to break through that barrier. Science that changes lives should be understandable by everyone, not just the people who produced it.
On Elderly Care: Volunteering as a social media content creator at H-Whale showed me firsthand how much of Hong Kong's elderly population struggles to navigate health information — especially in a system that defaults to English and clinical language. Watching my grandparents struggle to understand their own health reports was the moment I knew I had to do something about it.
— Tevin Yeung
🎓 BBiomedSc Student · Founder · Hong Kong
✦ Contact the Founder
Get in touch with Tevin
I read every message personally. Whether you're a student, caregiver, researcher, or just curious — I'd love to hear from you.
Chat with Tevinly ✦
Hi! I'm the Tevinly assistant. Ask me anything about the platform 👋