Adiet rich in can cleanse and open arteries that are clogged with plaque. high-density lipoproteins (hdls) low-density lipoproteins (ldls) red meat fatty acids

A diet rich in high-density lipoproteins (HDLs) can help cleanse and open arteries.
There are two types of lipoproteins, low density lipoprotein and high density lipoprotein (LDL and HDL). LDL is also known as bad cholesterol and HDL are known as good cholesterol. HDL can help in cleansing arteries, so there is no blockage and it will reduce the risk of heart attack.

Because without physical activity, the body has extra "energy" if you will, and so when it is time for bed you are not tired, so you end up staying up all night. also there is probably an effect on your internal clock, which messes with your melatonin production which goes hand in hand with your sleep cycle