Siim Land

Siim Land

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Author/educator; posts biohacking, fasting, and performance with references.

Internalized Stress Predicts Five-Year Memory Decline in Elders
SocialJun 13, 2026

Internalized Stress Predicts Five-Year Memory Decline in Elders

The way you internalize stress may determine how harmful it becomes. Among older adults, the strongest psychosocial predictor of memory decline over 5 years was stress internalization: - more perceived stress - more hopelessness - less conscientiousness Social support, activity engagement, and community cohesion were...

By Siim Land
Balance Beats Extremes: Optimize All, Not Just One
SocialJun 9, 2026

Balance Beats Extremes: Optimize All, Not Just One

Longevity isn't determined by your greatest strength. It's often determined by your biggest weakness. - excellent fitness but poor mental health - good blood markers but poor fitness - excellent sleep but poor bloodwork - perfect diet but still a pooch...

By Siim Land
Fasting‑Mimicking Diet Cuts Biological Age, Boosts Health
SocialJun 9, 2026

Fasting‑Mimicking Diet Cuts Biological Age, Boosts Health

Dr. Valter Longo is a biogerontologist who created the fasting-mimicking diet (FMD). In studies, the fasting-mimicking diet has been shown to: - Lower PhenoAge biological age score by 2.5 years in 3 months - Regenerate parts of the immune system - Reduce insulin resistance -...

By Siim Land
Loss of Resilience Drives Age‑related Disease Risk
SocialJun 8, 2026

Loss of Resilience Drives Age‑related Disease Risk

An 80-year-old has a dramatically higher risk of cancer, heart disease, stroke, and dementia than a 20-year-old - up to 100x higher. If there were to be a single reason, then it would be loss of resilience. Aging is the gradual decline...

By Siim Land
No Safe Alcohol Level: Cancer Risk Rises Linearly
SocialJun 8, 2026

No Safe Alcohol Level: Cancer Risk Rises Linearly

Alcohol is an underappreciated risk factor for cancer. A new large analysis of 843 studies found that alcohol intake was associated with a linear increase in the risk of several cancers, with no clearly safe level observed. - 16% higher risk of...

By Siim Land
Irregular Sleep Increases Heart Disease Risk Significantly
SocialJun 5, 2026

Irregular Sleep Increases Heart Disease Risk Significantly

Sleep regularity might matter as much as sleep duration or even more. Compared to people with consistent sleep, those whose sleep duration varied by >120 minutes had: - 33-39% higher risk of severe coronary artery calcification (CAC >300) - 58-75% higher risk of...

By Siim Land
Top 10 Science-Backed Supplements for Health
SocialJun 4, 2026

Top 10 Science-Backed Supplements for Health

Top 10 evidence-based supplements: 1. Creatine 2. Omega-3s 3. Taurine 4. Melatonin 5. Ashwagandha 6. Berberine 7. Magnesium 8. Psyllium husk 9. Glycine 10. NAC

By Siim Land
Older Fathers Reduce Offspring Reproductive Success, Study Finds
SocialJun 4, 2026

Older Fathers Reduce Offspring Reproductive Success, Study Finds

Older fatherhood might lower evolutionary fitness in the children. A study of 1.4 million+ people found that having a child at 45 instead of 35 was associated with roughly 3–8% lower reproductive success in the offspring. The likely explanation: more mutations accumulate...

By Siim Land
20‑30 Minutes: Ideal Sauna Time for Maximum Benefits
SocialJun 3, 2026

20‑30 Minutes: Ideal Sauna Time for Maximum Benefits

Here is the timeline of sauna benefits: 5-10 min - sweating starts 12 min - heart rate elevation 15 min - white blood cell count increases 15 min - growth hormone increases 20 min - cardiovascular benefits kick in 20-30 min - heat shock protein response 30...

By Siim Land
Lutein & Zeaxanthin Raise Eye Health 25% in Six Months
SocialJun 1, 2026

Lutein & Zeaxanthin Raise Eye Health 25% in Six Months

If you're getting digital eye strain and experiencing a decline in eyesight, consider lutein and zeaxanthin Taking 10 mg of lutein and 2 mg of zeaxanthin has been seen to increase macular pigment optical density (MPOD), a marker of eye health,...

By Siim Land
Melatonin Cuts Radiation DNA Damage by One‑third
SocialMay 31, 2026

Melatonin Cuts Radiation DNA Damage by One‑third

Melatonin has radioprotective effects☢️ In this 2020 clinical study, 5 healthy males aged 25–35 were given 100 mg of melatonin before exposure to 100 mGy of X-ray radiation (equivalent to multiple CT scans) - 1 hour after radiation: 33% reduction in DNA...

By Siim Land
Aging Happens in Two Biological Bursts at 44 and 60
SocialMay 30, 2026

Aging Happens in Two Biological Bursts at 44 and 60

According to a Stanford study, your biology may undergo two major accelerations of aging: - Around age 44 - Around age 60 Dr. Michael Snyder's team analyzed 135,000+ biological markers and found that aging appears to happen in bursts—not a steady decline. Here's what...

By Siim Land
Red Light Therapy Proven for Healing, Anti‑Aging, Pain Relief
SocialMay 28, 2026

Red Light Therapy Proven for Healing, Anti‑Aging, Pain Relief

Red light therapy or photobiomodulation sounds like a gimmick, but it has legitimate evidence for: - wound healing - skin anti-aging - lowering inflammation and pain - eye health and myopia - bone repair - hair growth Here's what you need to know about red light therapy⬇️⬇️: https://t.co/VfM86JqJzI Graph:...

By Siim Land
Top Blood Panel Scores Me #1 on Longevity Clock
SocialMay 27, 2026

Top Blood Panel Scores Me #1 on Longevity Clock

Did a comprehensive blood panel - one of my best ones yet All results down below ⬇️⬇️ With this, I ranked #1 at the Longevity World Cup on the BortzAge clock (-21.1 from chronological age) Full interview about the results: https://t.co/AznAbdqYlT https://t.co/VbMGYG2lK1

By Siim Land
Siim Land | Pulse