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What is the normal range of testerone according to age:

• 0-5 mo.    75-400

• 6 mos.-9 yrs.    < 7-20
• 10-11 yrs.    < 7-130
• 12-13 yrs.    < 7-800
• 14 yrs.    < 7-1,200        
• 15-16 yrs.    100-1,200        
• 17-18 yrs.    300-1,200
• 19+ yrs.    240-950
• Avg. adult male    270-1,070
• 30+ yrs.    -1% per year

Regarding your question: what is normal range for 43 year old male

201-993

What is the function of testerone

• control sex drive

• regulate sperm production
• promote muscle mass
• increase energy
• influence human behavior (such as aggression and competitiveness)

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