Siim Land (@siimland)

You need to be wildly optimistic. People who use more positive emotional language in autobiographies live longer (PMID: 11374751). A 2019 meta-analysis of 229,000+ people found that optimists had 13% lower all-cause mortality and about 35% fewer cardiovascular events (PMID: 31560385) Optimism may...

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 25% after 6 months They also saw improved visual an...

Exercise is known to be good for us, but how much exercise and is there something like too much exercise? Exercise is often seen to have a J-shaped curve with mortality risk - not enough is bad but too much is also harmful (PMID: 26187713) How much is optimal then?⬇️⬇️ ...

Minerals are the root of your health - they’re needed to carry out virtually every process in the body Water is a more bioavailable mineral source because it is dissolved and charged in the liquid, rather than bound to food particles. Check out this thread about mineral waters ...

NAD is considered a longevity molecule It decreases with age and low levels of NAD accelerate the hallmarks of aging But most people go about raising NAD levels the wrong way Here's a thread about how to maximize your natural NAD production and minimize its loss⬇️⬇️ ...

Blood flow restriction training is epic It's been found to trigger muscle hypertrophy response at only 20-30% of one rep max, whereas regular weightlifting usually is 70-80% (PMID: 26463594) You basically trick your body into thinking you're lifting heavier than you really are Full video: <a tar...

Taking 5 mg of melatonin raised growth hormone by 157% within 40 minutes. When resistance training was performed 60 minutes after ingestion, GH rose again — reaching a 132% increase by the 83rd minute. Exercise alone (placebo group) likely increased GH by ~50–70%, though exact figures were not rep...

Green tea is one of the healthiest beverages in the world - improves cardiovascular disease risk factors - improves heart health - improves metabolic health markers - targets all hallmarks of aging - reduces visceral fat - is associated with lower mortality Full thread on green tea benefits⬇️⬇️ Gr...

Circadian clock dysfunction affects virtually all the hallmarks of aging: - chronic inflammation - mitochondrial dysfunction - loss of autophagy - gut dysbiosis - cell senescence - telomere shortening Graph: PMID: 36583849 ...