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As we get older, one of the most important things we can do for our health may be to keep our muscle. Not just to look stronger. Not just to lift heavier weights. But to help us stay active, independent, and possibly even live longer. A study in the Journal of Bone and Mineral Research looked at body composition and survival in adults over age 65. The researchers measured muscle mass, body fat, and where that fat was stored. Then they followed these adults for about four year

In the last few years, research into exercise and brain health has pushed one molecule to center stage: Brain-Derived Neurotrophic Factor (BDNF). Often described as “fertilizer for the brain,” BDNF helps neurons grow, repair, and form stronger connections. Higher BDNF levels are linked to improved learning, memory, mood, and long-term cognitive resilience. And the most effective way to boost it? Exercise. Recent studies—including systematic reviews published in 2023–2025—show