TIME! That's it. However, several things can cause you to appear older.
Sunlight, or more specifically UV rays can cause wrinkles.
Stretching skin can cause wrinkles.
Certain diseases or conditions can cause hair loss, or greying. Maybe stress too?
If you don't treat them right, say, lack of nutrients or exercise, muscles can weaken.
Lack of nutrients also causes skin to sag.
Smoking cigarettes or pretty much any other sort of drug can make you look older.
But I suppose, the main factor, is children.
Hydrogen makes up 10% of the human body, Oxygen makes up 65% of the human body, and Carbon makes up 18% of the human body. Hydrogen combines with the Oxygen to create water that is also inside of the human body. -Hope this answers your question.
In adult men, water takes up about 60% of the body. In adult women, water takes up about 55% of the body. 78% of water is in the body of a baby. The average of water a human contains is 60% to 70%.
Approximately 60% of the human body is composed of water. This percentage can vary depending on factors such as age, gender, and body composition. Water is essential for various bodily functions, including regulating temperature, transporting nutrients, and removing waste.
Element composition of the human body: 65% Oxygen 18% CARBON 10% Hydrogen 7% All other elements
based on our fundemental constituant being Carbon and its adherance to oxygen as CO2 and Hydrogen H2O (being 70% approx of body mass), then on mass is would be Oxygen.
The element that makes up the majority of the human body is oxygen.
nbkhl,
The percentage of water in the human body varies depending on factors such as age, sex, and body composition. On average, water makes up about 60% of an adult's body weight. This percentage can be lower in infants and higher in leaner individuals.
Water. It makes up about 65% of the human body.
it makes it sick
living cells
it is human liver and kidney
Water usually makes up 55% to 78% of the human body
Oxygen makes up about 65% of the human body by mass.
The human body is made up of about 60 water.
if you have them inyour body it makes you gay
The stuff that makes up your body is "human flesh".