Puberty (8 page)

ejaculation 18

emotions 7, 13, 26–31, 36–37, 39, 40–41

mood swings 26–27, 38–39

stress 22, 27, 38–39, 40–41

energy levels 7, 27, 32, 41

erection 16, 18, 28

exercise 9, 27, 32–33, 38–39

genes 22

genitals 25

glands 6

adrenal glands 8, 14, 28

pituitary gland 6

sebaceous glands 20, 22–23

sweat glands 15, 24, 25

aprocrine glands 24

eccrine glands 24

groin 24

growth spurt 6–7, 8, 14–15, 32

hair 15, 20, 22

health

aching joints 8

anemia 8

asthma 32

body dysmorphia 34

bone and tooth decay 8

cramps 13

headaches 8, 13, 38

heart disease 32

high blood pressure 32

muscle weakness 8

nausea 8, 13

obesity 8, 32–33, 36

stomach aches 38

testicular cancer 16

tiredness 7, 8, 13, 27, 41

type 2 diabetes 32

hips 8

hormones 6–7, 17, 26, 40

androgen 14, 16, 20

estrogen 8, 13, 16, 20

progesterone 8

sex hormones 7, 8, 12, 15, 20, 28

testosterone 14, 20, 28

immune system 37

laxatives 36

libido
see
sex drive manic-depressive disorder 38

masturbation 18, 28

menopause 12

menstruation 6, 12–13, 20–21, 22, 37

mental health 38–39

anxiety disorder 38–39

bipolar disorder 38–39

depression 8, 38–39, 40–41

obsessive compulsive disorder (OCD) 38

schizophrenia 39

orgasm 18

ovulation 12

peer pressure 43

periods
see
menstruation premenstrual syndrome (PMS) 13

relaxation 27, 39

reproduction 7, 18, 28

sebum 20, 22, 23

self-confidence 23, 42, 43

self-esteem 23, 34, 37, 40–41, 42–43

self-harm 41

semen 18

sex drive 28

sexuality 30

heterosexuality 30

homosexuality 30–31

shaving

boys 14–15

girls 8–9

skin 20, 22–23, 24, 34

skin pores 20, 22

skin problems 8, 20–21, 22

acne 20, 22–23, 34

blackheads 20–21, 22

cysts 22

pimples 20–21, 22

whiteheads 22

skin products 20–21, 23

sperm 12, 14, 18

sweat 8, 15, 24–25

tampons 13

vaginal discharge 8, 11

voice breaking 15

vomiting 8

washing 20–21, 23, 24–25, 38

waxing

boys 15

girls 8–9

weight

gain 8, 32, 36–37

loss 8, 35, 36–37

wet dream 18