hello every body , i am in my 55 years old a retired man , no smoking no drinking and not fat,i try to have jogging about 3/5km in the local park every early mornings, or 4 times per week at least. but i feel very tired in the noon time and need to take a full rest and sleep otherwise i am very sleepy until to night i go to bed.whats this for? is it natural or i should reduce my my sport ? by the way before start the gogging i go about 1/5 on foot and the same amount after fininshing it. i thanks all replayers
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