Archive | The Longevity Letter

Your blood pressure is not boring. Your annual physical just makes it look that way.

Your blood pressure is not boring. Your annual physical just makes it look that way.

Hillary Lin, MD

May 22, 2026

The most important aging clock is not your biological age

The most important aging clock is not your biological age

Hillary Lin, MD

May 14, 2026

Why Pickleball Is the Ultimate Longevity Sport

Why Pickleball Is the Ultimate Longevity Sport

Hillary Lin, MD

May 7, 2026

The one supplement I might throw away first

The one supplement I might throw away first

Hillary Lin, MD

Apr 28, 2026

Your sleep score is lying to you

Your sleep score is lying to you

Hillary Lin, MD

Apr 22, 2026

The NIH tested 8 longevity supplements this year. All 8 failed.

The NIH tested 8 longevity supplements this year. All 8 failed.

Hillary Lin, MD

Apr 15, 2026

Peptides get the hype. These amino acids get the results.

Peptides get the hype. These amino acids get the results.

Hillary Lin, MD

Apr 8, 2026

Your Supplement Might Contain Viagra, Lead, or Poison

Your Supplement Might Contain Viagra, Lead, or Poison

Hillary Lin, MD

Mar 31, 2026

Your Biological Age Test Might Be Lying to You

Your Biological Age Test Might Be Lying to You

Hillary Lin, MD

Mar 23, 2026

Your Brain Is Still Growing New Neurons.

Your Brain Is Still Growing New Neurons.

Hillary Lin, MD

Mar 4, 2026

GRAIL's Cancer Test Just Failed Its Big Trial. Here's Why I Still Use It.

GRAIL's Cancer Test Just Failed Its Big Trial. Here's Why I Still Use It.

Hillary Lin, MD

Feb 25, 2026

He didn't run until 66. At 82, he beats 20-yo athletes.

He didn't run until 66. At 82, he beats 20-yo athletes.

Hillary Lin, MD

Feb 17, 2026