Meet Your ‘Biological Age’

Betsy Morris:

Dr. Sinclair has been criticized by other scientists for hyping the results of some of his findings, like the antiaging effects found in the compound resveratrol, claims he rebuts. He says that he doesn’t overstate his research findings and that the resveratrol research was published in leading scientific journals. He has co-founded more than a dozen biotech companies and is invested in most of them, including some that are developing therapeutics that target the biology of aging.

Segterra Inc.’s InsideTracker, a personalized-nutrition company founded by scientists from Harvard, Tufts University and the Massachusetts Institute of Technology, calculates biological age by having users take blood tests and analyzing the samples for markers of conditions like inflammation, heart health and liver or kidney disorder. Those who test as older than their years get recommendations to adjust diet, exercise and supplements.

Many other health startups are offering testing that purports to calculate biological age, sometimes with little scientific backing, and designing supplements aimed at boosting youthfulness.

Stephen Roberts, a winery owner in France, tested himself earlier this year with an at-home blood test by U.K.-based biotech company GlycanAge Ltd. The test was part of an effort by Mr. Roberts to improve his health at age 51.

“I drink. I sometimes smoke and party and eat what I want,” he says, so he expected his biological age to be a lot older than his calendar age.