This varies from person to person. There is a point in time at which hormones in a persons body begin to loose their effective functions, a period I have heard reffered to as adult puberty. In women this is marked by menopause. While you can still theoretically maintain a healthy body at this time, it becomes increasingly difficult. Maintaining a healthy diet and constant exercise are essential to achieving this. A doctor won't tell you much more than this.
The inequlity symbol is = that but maybe u should have put that in math
Unfortunately... You're better off keeping that VP shunt in your head. VP Shunts are usually kept in for a long time, which actually can cause a problem where skin and tissue attaches to the tube. VP Shunt removals are risky, because that means, that they would have to separate the tissues that have become attached to it, which can create major complications, especially when brain tissue is involved. You also run the risk of severe infection from doing so... The Shunt removal especially for such a long time period is better avoided, but it is possible, but you should probably bring it up with your PCP and a neurosurgeon or neurologist.
On the bright side, you can actively participate in sports just as long as it is not a contact sport, which risks contact with the shunt.
Answer:
It was actually "weaker immune system". Just took the test and got it right.
Explanation:
All the other answers are short term effects. If you don't sleep for a day, your movements would be slower, you would be more tired and wouldn't be able to concentrate. However, if you just miss one day of sleep, your immune system ain't gonna suffer.