However, the dose of astaxanthin required for this is on the high side.

Supplementation with a high dose of the amino acid ergothioneine may help people in their 30s and 40s stay just as fit as they were in their twenties. Animal data.

That is suggested by a human study published in Nature Medicine in March 2026.

According to a human study published in Biology in 2022, you need a dose of 6 grams of dried spirulina per day for this.

Even if you live a healthy lifestyle, physical pain often becomes an inseparable part of life after the age of forty. This study suggests that this doesn't happen if you consume four tablespoons of extra virgin olive oil daily.

Vitamin B1 has little effect on the physical symptoms of premenstrual syndrome, but a significant effect on the psychological symptoms.

And if that's the case, vitamin B12 supplementation can cause the hallucinations to disappear.

This is suggested by a somewhat older American human study published in ISRN Psychiatry.

Sleeping in darkness supports insulin sensitivity, promotes the production of anabolic hormones and tissue repair, and helps regulate immune function.

This was discovered by American scientists who had women sleep on a gel mattress that dissipates heat more effectively. A slightly thinner blanket might have the same effect, we suspect.

Berberine supplementation can reduce glucose levels to prediabetic levels in people with early-stage type 2 diabetes.

If you don't eat for three hours before bed - and thus extend your overnight fasting period by a few hours - the workload on your heart decreases, your cortisol levels decrease, and insulin function improves.

Incorporating two handfuls of almonds into your daily diet will reduce the number of pimples, blackheads, red spots, and bumps.