In an earlier post, I wrote about quantifying my biological age with ( The importance of that post is illustrated by the finding that based on data from 13 blood tests between 2016 – 2019, my average biological age is 29.2y, which is ~33% younger than my chronological age. […]

Within the body, meat, grains, and nuts are generally acid-forming, whereas vegetables and fruits are alkaline-forming. Is the distinction between whether your diet is acid- or alkaline-forming important for optimal health and lifespan? In an earlier post, I discussed the importance of PRAL (potential renal acid load) by correlating it […]

In an earlier post, I wrote about the association between biomarkers of systemic acid-base balance (serum bicarbonate, the anion gap, urinary pH) with all-cause mortality risk ( Based on these data, systemic acidity may not be optimal for health and longevity, when compared with more alkaline values. Can circulating acid-base biomarkers […]

I recently heard centenarian Bernando Lapallo say that he boils his drinking water ( Whether this is a contributor to or is merely associated with his longevity is debatable. What will boiling your water do, prior to drinking it, and is it worth the effort? The ability of our immune […]

How much selenium is optimal for health? To address this question, I’ll examine the association between circulating levels of selenium with all-cause mortality risk. Then, I’ll identify a dietary selenium intake that corresponds to optimal plasma selenium levels. Let’s have a look! A variety of studies have investigated associations between plasma (or serum) selenium with […]

Mice that don’t have myostatin have dramatically increased muscle mass: Myostatin levels increase during aging, a finding that may (at least partially) explain age-related decreases in muscle mass (Basaria and Bhasin 2012). Is there anything that we can do besides strength-training (Snijders et. al 2014) to decrease myostatin levels? To address […]