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The desire for sensual pleasure is usually the main motivation for humans, and sometimes the wish to have a baby or more children. [2] [3] The biological function of vaginal intercourse is human reproduction. During coitus without a condom, sperm enter the vagina, first with the pre-ejaculate and then a larger amount through male ejaculation. [4]
The traditional routes of administration do not have differential effects on the efficacy of the drug. Studies indicate that the anabolic properties of AAS are relatively similar despite the differences in pharmacokinetic principles such as first-pass metabolism. However, the orally available forms of AAS may cause liver damage in high doses ...
Human reproduction naturally takes place as internal fertilization by sexual intercourse. During this process, the man inserts his erect penis into the woman's vagina and then either partner initiates rhythmic pelvic thrusts until the man achieves orgasm , which leads to ejaculation of semen containing sperm into the vaginal canal.
Sildenafil is a phosphodiesterase type 5 inhibitor, or PDE5 inhibitor. These medications work by inhibiting an enzyme and thereby expanding the blood vessels that transport blood to your member.
Sildenafil, sold under the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. [4] [8] It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud's phenomenon. [9]
The use of AI in best picture contender “The Brutalist” recently grabbed headlines and ignited controversy, but it isn’t the only Oscar contender to use the advancing technology. High ...
An inherent difficulty in studying human pheromones is the need for cleanliness and odorlessness in human participants. [3] Experiments have focused on three classes of putative human sex pheromones: axillary steroids, vaginal aliphatic acids and stimulators of the vomeronasal organ.
Long work hours and short breaks have led many Koreans to live close to urban centers, with over 80% of the population living in cities. And within Kim’s photographs there is an intriguing ...