Natural?: At your age there would be nothing "natural" to increase hardness or bloodflow which should be perfectly normal. If you are having trouble you should se your doc who can find out what if anything is abnormal. Treatment could then be targeted to the problem.
Answered 12/8/2013
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2 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
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