How much protein should you eat? Muscle growth vs. IGF-1 longevity concerns | Rhonda Patrick

Parent Episode: Fasting Q&A with Dr. Rhonda Patrick and Mike Maser

There's a trade-off that occurs with aging and muscle growth. Whereas fasting turns off multiple pathways associated with aging, such as mTOR and IGF-1, eating for optimal fitness activates these important processes. The IGF-1 pathway, in particular, plays key roles in growth and is strongly associated with cancer. But it also participates in the repair of muscles and neurons and promotes brain health. Directing IGF-1 toward its more beneficial processes through exercise may offer protection from its deleterious effects. In this clip, Dr. Rhonda Patrick describes the dual nature of biochemical pathways involved in aging and explains how exercise tips the balance toward its beneficial properties.

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