Calories When Starving. The lowest recommended caloric intake for women and men is 1,200 and 1,500 calories, respectively. According to the National Institutes of Health's Medline Plus, a diet of 500 to 800 calories a day is dangerously too low and should not be done unless its a medically supervised diet.hoto Credit George Doyle/Stockbyte/Getty Images. The amount of calories you need per day varies according to your gender, age and body weight, according to the American Heart Association. Eating significantly fewer calories than your body needs over a long period of time can seriously endanger your health.
When it comes to buying a Camshaft, quality matters. Getting the most out of your vehicle's engine, you should do your best to ensure driving safety. That's why buying Camshaft from an authorized retailer is essential, whether you're hitting the track or driving in rush hour.erformance camshaft. The two important aspects of a camshaft, in terms of engine performance, are camshaft duration, or cam duration, and valve lift. Both cam duration and valve lift are determined by the camshaft lobe.
The cam shaft has lobs on it which are egg shaped and they rub against the top of the valve and when the egg shaped part of the lob rubs on the top of the valve it opens it up and allows the air to enter the engine and the same thing happens for the exhaust valve.est Answer: the cam shaft rotates and it makes the pistons go up and down in order for the proper combustion cycle. if the cam shaft is broken the car will not run. they usually do not break but wear down from usage or bend. Source(s): overhaulin' and spike power block. Steven J Â· 7 years ago. Thumbs up.