Ollie Whitby | Health Scientist
Doctoral researcher studying aging; posts on longevity science and Alzheimer’s risk factors.
10 Daily Habits to Dodge Aging, Backed by Science
I’ve spent 8 years studying the biology of aging. 🧬 Here are 10 things I avoid every day ↓
Control Low-Grade Inflammation to Cut Aging Disease Risk
Chronic, low-grade inflammation helps create an internal environment where many of the major diseases of aging are more likely to develop. Manage it well, and you can lower your risk across the board.
Sleep Hacks: 5 Science-Backed Ways to Boost Rest
Diet and exercise get all the attention. But poor sleep can blunt the benefits of both. Here are 5 research-supported habits that transformed my sleep quality ↓
Stop Losing Muscle: Start Resistance Training Now
We start losing muscle from our 30s — and by our 70s, 30–40% can be lost if we don’t actively maintain it. Resistance training is the most effective way to counter this — yet most adults aren’t doing it consistently. I’m on...
Walk After Meals to Slash Post‑meal Blood Sugar
An underrated habit for longevity? Walking after meals. Blood sugar control is fundamental to healthy aging. Contracting your muscles helps shuttle glucose into them and can reduce the post-meal rise by 20-30%. Just 10-15 minutes is enough. Small habit. Big metabolic return.
Key Aging Factors That Matter After 40
I’m a bioscientist studying aging. 🧬 If you’re 40+, this is what actually matters ↓
Sleep Powers Brain's Waste Removal, Preventing Alzheimer Risk
Human biology fact: during sleep, your brain’s waste clearance system — the glymphatic system — becomes more active. Poor sleep is linked to greater build-up of metabolic waste, including amyloid (associated with Alzheimer’s disease), over time. Sleep isn’t optional. It’s...
Prioritize Sleep, Movement, Nutrition Over Fancy Biohacks
Speaking as a scientist in the longevity space: Too many people “major in the minors” when it comes to health. They obsess over biohacks — cold plunges, supplement stacks, red light panels — and neglect the fundamentals that drive most...
Your 70‑year Health Hinges on 30‑50 Habits
I’m a scientist studying the biology of aging. I focus my research on people in their 30s–50s because this is when lifestyle habits begin to compound and shape long-term health trajectories. Good health at 70 starts decades earlier.
33 Simple
I’ve spent the last decade studying the biology of aging. 🧬 Here are the 33 simple principles for healthy aging that consistently show up in the research ↓
Alzheimer’s Begins in Your 30s, Not Just Old Age
I’m a doctoral researcher studying aging, and I wish more people realised this: Alzheimer’s isn’t a disease of old age. It often begins developing decades earlier — as early as your 30s and 40s — and only manifests later in life.
Longevity Thrives on Simple, Sustainable Habits, Not Extremes
After 8 years in biological research, one thing is clear: The healthiest agers aren’t doing anything extreme. They’ve simply found a version of the basics they can sustain.
Consistent Sleep Schedule Beats Hours for Brain Health
Sleep timing regularity may be just as (if not more) important than total hours. Irregular sleep–wake times (even 1–2 hour shifts) are linked to: → Poorer cognitive performance → Higher inflammation & blood pressure → Increased risk of cardiovascular & neurodegenerative disease Your brain’s “master...