How Exercise May Help the Memory Grow Stronger

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  • The potency of our synapses depends to some degree on how we live our lives. Lack of sleep, alcohol, diet and other aspects of our lifestyles, especially stress, may dampen the flow of messages between brain cells, while practice fortifies it. Repeat an action and the signals between the cells maintaining the memory of that action can strengthen. That is learning.
  • Researchers separated groups into active, exercising mice and sedentary mice. Then parts of each group were stressed. Then they looked at neurons and the unstressed runners had the strongest, busiest synapses. Notably, the stressed runners had neurons that were as strong as the unstressed sedentary animals