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The head injury and age are two things that weaken the nervous system. Hard and manual jobs also weaken the nervous system.
At 5 years of age
as you age your immune system becomes weak this may be the reason
I would imagine that it varies from person to person, but generally I would think age does not help ones health, as most peoples immune systems weaken with age, along with the possibility of mental health declining as well.
The decline in the immune system with age is still an area of active investigation. A complete understanding of the molecular interactions and physiological mediators that being about this decline are not fully dissected as yet. However, the general consensus is that there is a gradual decline the in the size of the thymus beginning at around age 20 and extending for the rest of the individuals life. This is one major reason to account for the decline in the immune system with age
In a healthy person, this would be right after birth, when you're still relying on the antibodies from your mother. However, the immune system can be weakened by a variety of problems, these include AIDS, certain chronic inflections, etc. Old age also weakens the immune system.
Yes. I am 9 stone, age 13, and I have an impossibly strong immune system. Mainly because when I was younger, I had VERY heavy chicken pox. (The doctor said it was the worst case he had ever seen) That put my immune system up strongly.
It does the opposite of making you immune; it puts you at higher risk for developing shingles as your immune system weakens with age. You do need a vaccine.
they weaken and detoriate
Influenza, more commonly known as the flu is lethal to babies unless protected from contact. The reason is that under 1 year of age they will have little or no immune system with which to fight off the attack.
Only extremely "horny" men.
The thymus plays an important role in both the immune and endocrine systems.thymus