A man's body clock - psychology today article... Mark Teich - (edited by me)

Women have unfairly borne the brunt of the blame for birth defects.

There is irrefutable evidence, that male fertility decreases decade by decade. especially after 35, aging sperm can be significant and sometimes the only cause of health and serious developmental problems in offspring, such as autism, schizophrenia, Down Syndrome and cancer. - also causing miscarriages. Older the father, higher the genetic risk.

Men produce millions of sperm every time they ejaculate, after each ejaculation, they literally replicate those cells and each replication multiplies the chance for a DNA "copy error" - a genetic chink in the sperm DNA.

Sperm DNAcan be damaged by even low levels of free radicals and still can fertilize. Whereas High levels lead to infertility, miscarriages & spontaneous abortions. Sperm are incapable of repairing itself.

• Teens 13/14 - sperm not fully formed, risk of infertility and birth defects. Sperm maybe extremely healthy in older teens, but teen behaviour may put sperm at risk.
• Men in there 20s are the prime years for male reproduction, the least period of risk.
• 30s start to decline, 32-34 fertility begins to fall, a significant increase in sperm damage.
• 40s type 2 diabetes and metabolic syndrome, cardiovascular risks. Schizophrenia.
• 50s low levels of quality in sperm, increasing in mutations and birth defects.
• 60s...old man sheesh even look at that fckin viagra mate!

Testosterone is the key. it declines at 30, BUT there are other varying factors such as weight to heart heath. "Fat cells in a potbelly overheat the testes and break testosterone down, clogged arteries break it down.

So what to do?

• Heart check ups - cholesterol check.
• stay active for you 30+, health is the key for higher testosterone.
• watch your weight. it decreases the testosterone in your sperm if you aint fit.
• take anti oxidants, vitamin C, E they help battle free radicals.
• drinking and smoking to excess.
• hot baths, hot tubs, hot water generally!
• laptops not on your laps!
• see a urologist 0 testing of sperm content and testosterone levels.
• Varicoceles removed by the urologist, it is engorged veins in the scrotums, it traps the blood flow in the scrotum, cooking and choking the sperm. easily reversible.