Videos
Full episodes, short animated explainers and Shorts. Every claim traced to the study behind it in the matching article.
One investigation, start to finish.
13:09 · Cardiovascular Risk · Interventions
Some mouthwashes wipe out the bacteria on your tongue that help your body make nitric oxide, the signal that tells your arteries to relax. One word on your label tells you which kind of rinse you have.
Read the full investigation, with sources →One mechanism, about two minutes.
1:36 · Cardiovascular Risk · Interventions
The bacteria at the back of your tongue turn nitrate from your greens into nitrite, which your body turns into nitric oxide. Wipe them out with a strong antiseptic rinse and, in one study, blood pressure crept up within a day.
Read the full investigation, with sources →2:00 · Aging Biology · Interventions
A standard drink of wine is 5 ounces; most of us pour closer to 8. Then the glass goes to your liver, where repeated heavy drinking damages mitochondria, one of the hallmarks of aging.
Read the full investigation, with sources →0:58 · Cardiovascular Risk
A normal heartbeat, slowed down, then atrial fibrillation: the atria quiver instead of squeezing, and a clot can form and travel to the brain.
Read the full investigation, with sources →