Sometimes called sacred lotus, Chinese lotus root (Nelumbo nucifera) is a perennial species of aquatic plant grown for its fragrant, cup-shaped flowers and round foliage. It grows well within U.S. Department of Agriculture plant hardiness zones 4 to 10, where it is commonly added to water gardens and decorative ponds.
What causes puberty to begin? Puberty, that awkward phase when boys and girls are primed for their sexual reproductive years as men and women, appears to be triggered by the brain's own version of It takes two to tango, whereby a signal literally gets turned on by a molecule that is produced by a gene aptly named KiSS-1.
It's the force behind his sex drive. During puberty, testosterone helps build a man's muscles, deepens his voice, and boosts the size of his penis and testes. In adulthood, it keeps a man's muscles and bones strong and maintains his interest in sex. In short, it's what makes a man a man (at least physically). After age 30, most men begin to experience a gradual decline in testosterone. A decrease in sex drive sometimes accompanies the drop in testosterone, leading many men to mistakenly believe that their loss of interest in sex is simply due to getting older.