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Saliva on a baby's lips. Saliva (commonly referred to as spit or drool) is an extracellular fluid produced and secreted by salivary glands in the mouth.In humans, saliva is around 99% water, plus electrolytes, mucus, white blood cells, epithelial cells (from which DNA can be extracted), enzymes (such as lipase and amylase), and antimicrobial agents (such as secretory IgA, and lysozymes).
In physiology, body water is the water content of an animal body that is contained in the tissues, the blood, the bones and elsewhere. The percentages of body water contained in various fluid compartments add up to total body water (TBW). This water makes up a significant fraction of the human body, both by weight and by
Women in the luteal phase reportedly have levels of cortisol equal to men, suggesting no sex differences in base levels of cortical when women are not ovulating. Women in the follicular phase and women taking oral contraceptives reportedly have significantly lower levels of cortisol when compared to men and women in the luteal phase. [20]
Boogers trap invading viruses and bacteria before they can enter your body, so eating boogers might expose your system to these pathogens. See more stories on Insider's business page . Following ...
Sebaceous glands line the human skin while apocrine glands are located around body hairs. [1] Compared to other primates, humans have extensive axillary hair and have many odor producing sources, in particular many apocrine glands. [18] In humans, the apocrine glands have the ability to secrete pheromones. These steroid compounds are produced ...
Color blindness affects around 1 in 12 men, as well as 1 in 200 women. 90% of color-blind people admitted that it does affect them at work, while 75% said that they need their colleagues’ help ...
The plastic pollution — small broken-down pieces that are no larger than five millimeters — has been detected everywhere: in the water humans drink, in the air we breathe, in our hearts, and ...
Phlegm is more related to disease than mucus, and can be troublesome for the individual to excrete from the body. Phlegm is a thick secretion in the airway during disease and inflammation. Phlegm usually contains mucus with virus, bacteria, other debris, and sloughed-off inflammatory cells.