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Where longevity science meets personalized medicine. Evidence-based. Clinically guided. Eat · Move · Sleep · Connect

10/20/2026

Awake at 3 a.m. for hours, but no hot flashes? Hormones may still be involved.

In perimenopause, lower estrogen and higher FSH are linked to more nighttime awakenings, even in women who never get hot flashes or night sweats.

The timing makes sense too. Early in the night, sleep drive is strong and most of your deep sleep happens then, so a disruption may not fully wake you. Toward morning, sleep gets lighter. Wake up at 2 or 3 a.m. and your stress response kicks in, cortisol rises, and you stay up.

As Dr. Byrne explains, the thing that woke you isn’t always the thing keeping you awake.

From Dr. Nicki Byrne's conversation on sleep at the Livelong Media NYC Women's Health Summit

10/19/2026

Hours get the attention. In a 60,000-person study, consistency predicted more.

Researchers tracked a week of sleep with wrist sensors, then followed people for about six years. Those with the steadiest sleep and wake times had a lower risk of death from any cause, and regularity predicted that risk better than total hours did.

This is one observational study of mostly older UK adults (average age 63), so it shows an association. To no surprise, sleep duration still mattered too.

If you want to try it, pick a wake time and keep it on weekends.

10/12/2026

A new analysis of the Global Flourishing Study surveyed 204,907 adults. Each extra point of contentment with friendships was associated with a mental health rating 0.46 points higher and a physical health rating 0.34 points higher. Whether relationships matched what people wanted showed a link of about 0.02 points.

This was a single observational survey with self-rated health, so it shows a link, not cause and effect.

Send this to someone who always shows up for you.

10/06/2026

How long should a nap be?

Across 54 studies, afternoon naps were linked to sharper thinking. Across 44 cohort studies and 1.86 million adults, naps of 30 minutes or more were linked to higher cardiovascular and metabolic risk, while shorter naps showed no significant risk.

Set the alarm, recline, and keep it early in the afternoon.

Save this for your next slump.

10/01/2026

Physical decline showed up about 10 years before heart events in this new JAMA study.

Researchers followed 12,015 adults aged 70+ for up to 14 years. People who went on to have a cardiovascular event were already frailer, with worse physical function, years before it happened. The gap grew fastest in the final 5 years.

Standard heart risk calculators don't ask how well you move. We measure VO2 max, heart rate recovery, max heart rate, strength and movement every year, and read them alongside your labs.

Has a doctor ever tested your fitness at a heart checkup? Let us know down below.

09/29/2026

A lab tested viral bodega "peptides." The results? They weren't peptides.

WIRED recently bought vials of injectable peptides from a Brooklyn convenience store and sent them to an independent lab for testing. What came back didn't match what the labels promised.

Curiosity about peptides makes sense. The research is genuinely interesting. But a label isn't a lab result, and a certificate isn't a guarantee.

If peptides are on your radar, start with a conversation.

09/28/2026

Your body usually notices stress before you do.

It shows up quietly: a clenched jaw during emails, a second wind at 10pm, a 3pm sugar craving. It's easy to write these off as quirks or push through them. More often, they're your nervous system asking for a pause.

Stress itself isn't the problem. Your body is built to handle it in bursts. What matters is whether it ever gets the chance to switch off. Noticing these signals early is one of the simplest ways to protect your health over the long run, and it starts with listening.

09/23/2026

The frustration you feel while learning something new isn't failure. It's the signal.

That agitation reflects a shift in brain chemistry that's linked to neuroplasticity, which is your brain's ability to rewire itself.

Easy doesn't prompt it. Friction does.

You probably won't have the skill tomorrow. Come back a few days later, though, and you're likely a little closer. That's the process working.

Find your edge. Go a little past it.

09/22/2026

VO₂ max is one of the strongest healthspan markers ever studied, and one of the most trainable. Our team trains it very differently, from stair intervals to walking pads to running alongside the kids while they ride their bikes. The shape of the week is what stays the same.

Which lever are you pulling this week: speed, incline, or load?

09/19/2026

You don't need 50 friends. You need 4 or 5 people who actually know you.

sat down with Dr. Byrne to talk about the longevity pillar that gets the least airtime: connection.

The data is hard to ignore. A meta-analysis of 148 studies found that lacking strong social connection was associated with a mortality risk comparable to smoking up to 15 ci******es a day. The U.S. Surgeon General's 2023 advisory on loneliness pointed to the same comparison.

But the answer isn't a bigger network. It's depth. A small circle you can really open up to appears to matter more than a long list of contacts, which may help explain why major disruptions like divorce or losing a loved one are associated with higher disease risk in the years that follow.

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