Answer:
Mounting evidence indicates that in healthy older adults, <u>Mylenin breakdown</u> predict(s) decrements in reaction time and other cognitive abilities.
Explanation:
According to one view, aging is accompanied by withering of the myelin coating on neural fibers within the cerebral cortex, leading to deteriorating neural connections, especially in the prefrontal cortex and the corpus callosum. Mounting evidence indicates that in healthy older adults, extent of myelin breakdown—appearing as small, high-intensity bright spots within fMRIs—predicts decrements in reaction time and other cognitive abilities.
1.regulate bodily functions
2.promote growth
3. Repair body tissues
4. Obtain enery
Increase blood flow to your working muscles, better preparing them for the additional workload to comeIncrease the delivery of oxygen and nutrients to your muscles, which prevents you from getting out of breath to early or too easilyPrepare your heart gradually for an increase in activity, helping you avoid a rapid increase in blood pressure.Prime your nerve-to-muscle pathways to be ready for exercise, which can improve the quality of your workoutImprove coordination and reaction timesReduce the chance of soft tissue (ligament, tendon and muscle) injuries by allowing your muscles and joints to move through a greater range of motion easily (and safely)Lubricate your joints for easier (and less painful) movementIncrease blood temperature, which can allow you to work out longer or harderPrompt hormonal changes in the body responsible for regulating energy production of releasing body fat.
