Too much cholesterol is a bad thing, but your body needs some cholesterol to work. what is the function of cholesterol in your body?

The function of cholesterol in your body is for production of hormones (like estrogen, testosterone, aldosterone, progesterone and cortisone), vitamin D, and bile (acids that aid in digestion and vitamin consumption). It also supports the cell membrane and its maintenance.

1.989×10^30 kg is the weight of the sun.