Heart Health
Cardiovascular fitness, the engine behind active years.
Jane Fonda said“Stay strong and keep moving as you get older, or you end up dependent on everyone else.”
The science saysWell supported. Large population studies tie lifelong activity to a longer, more independent life.
Verdict: Forty years on, the data still agrees with Jane.
Chris Hemsworth said“I carry a high-risk Alzheimer's gene, so I lean on exercise, sleep, and stress control to fight back.”
The science saysSupported. Big studies link regular exercise to meaningfully lower dementia risk, though they cannot promise it for any one person.
Verdict: He can't out-run his genes, but he can make them sweat.
Halle Berry said“The ketogenic diet reversed my health problems and slows down my aging.”
The science saysHalf right. Keto can lower blood sugar in the short term, but 'reversed it' is a louder claim than the trials will sign off on.
Verdict: Keto earns a B. 'Reversed it' is grading on a curve.
Joe Rogan said“Regular sauna sessions can cut your risk of dying and add years to your life.”
The science saysReal but observational. Frequent sauna use is tied to lower mortality in large cohorts, but that is correlation, not proof, and the cold plunge is along for the ride.
Verdict: The sauna science is real. The coffin-dodging guarantee is not.
Tom Brady said“Avoiding nightshade vegetables like tomatoes and peppers lowers inflammation.”
The science saysNo good evidence supports cutting nightshades for inflammation in healthy people. They are nutrient dense, and the TB12 method itself later added them back.
Verdict: Tomatoes are fine. Eat the tomatoes.