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For reference, a normal high-intensity exercise session would typically cause a calorie burn of about 9.2 calories per minute (that's an estimate: these studies are very limited, and more research ...
A 1992 World Health Organization report described normal human semen as having a volume of 2 mL or greater, pH of 7.2 to 8.0, sperm concentration of 20×10 6 spermatozoa/mL or more, sperm count of 40×10 6 spermatozoa per ejaculate or more, and motility of 50% or more with forward progression (categories a and b) of 25% or more with rapid ...
Semen is an important indicator of men’s overall well-being and can help raise potential issues early. What your semen says about your health Skip to main content
The amount of semen produced and expelled during ejaculation corresponds to the length of time that the male is sexually aroused before ejaculation occurs. [4] Generally, the longer the period of arousal, the larger the amount of seminal fluid.
Sperm (pl.: sperm or sperms) is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction (forms in which there is a larger, female reproductive cell and a smaller, male one).
Hypospermia is a condition in which a man has an unusually low ejaculate (or semen) volume, less than 1.5 mL.It is the opposite of hyperspermia, which is a semen volume of more than 5.5 mL. [1]
A spermatozoon (/ s p ər ˌ m æ t ə ˈ z oʊ. ən, ˌ s p ɜːr m ə t ə-/; [1] also spelled spermatozoön; pl.: spermatozoa; from Ancient Greek σπέρμα (spérma) 'seed' and ζῷον (zôion) 'animal') is a motile sperm cell produced by male animals relying on internal fertilization.
Antonie van Leeuwenhoek first described crystals of spermine phosphate in human semen in 1678. [3] The name spermin was first used by the German chemists Ladenburg and Abel in 1888, [ 4 ] [ 5 ] and the correct structure of spermine was not finally established until 1926, simultaneously in England (by Dudley, Rosenheim, and Starling) [ 6 ] [ 7 ...