May be considered average
You get tired when you run because our leg muscles don't get enough oxygen anymore.
Answer:
puberty - is the name for the time when your body begins to develop and change as you move from kid to adult.
hormones - Hormones are chemical substances that act like messenger molecules in the body.
gender - Gender is used to describe the characteristics of women and men that are socially constructed,
Secondhand smoke (SHS) has the same harmful chemicals that smokers inhale.in dust and on surfaces and remain there long after the smoke is gone. ... any effects would probably be small compared with direct exposure to SHS. ... No actual cancer risk has been measured at this <span>time</span>
