Widening of the hip bones occurs as part of the female pubertal process, and sex hormones in females (estrogens) cause a widening of the pelvis as a part of sexual differentiation. Hence females generally have wider hips, permitting childbirth.
Women have wider hips than men because their pelves must allow for the birth of large-brained babies. Nevertheless, many female pelves are still not wide enough, which can result in difficult births.
A male hip bone has a heart-shaped pelvic inlet. A female hip bone has a slight oval-shaped pelvic inlet. The ischial tuberosity is more laterally projecting, longer, and densely packed. The ischial tuberosity is more medially projecting, shorter, and spread farther apart.
By the time a boy has reached the end of puberty, he may have grown 14 inches taller and 40 pounds heavier. Also, your son's neck may thicken, his shoulders will broaden, and his hips will widen. His facial bones will change, and his jaw line will become more defined.
During puberty, it's common for a woman's hips to widen and for her buttocks to fill out as she grows and develops. At age 13, you are almost certainly not finished growing. Some women get to be 20 years of age before all the changes that happen during puberty take place.
Female traits
Widening of the hip bones occurs as part of the female pubertal process, and estrogens (the predominant sex hormones in females) cause a widening of the pelvis as a part of sexual differentiation. Hence females generally have wider hips, permitting childbirth.
Physical Development. At 13, many girls are going through puberty. A huge change in hormones brings about fuller breasts, wider hips and pubic hair. Your daughter's skin and hair will start making more oil and their height, weight and body fat will increase.
Shape. As you go through puberty, you get taller, your hips get wider, and your body begins to build up fat in your belly, hips, thighs, buttocks, and legs. It is normal for girls to develop different body shapes.
In Stage 2, physical changes begin. Between the ages of 8 and 13, girls typically experience: Their breasts begin to bud, and their areolas (pigmented area around the nipple) enlarge. Scant pubic hair appears.
Men accomplish more higher intensity physical activity than women and this seems to be explained by trips out of the house. However, there is evidence that they also sit down for longer periods in the day. Women do more lower intensity activity which probably represents daily tasks around the house.
Slim Waist, Wide Hips, Instant Attraction
In a landmark research conducted by the late Devendra Singh, she found that men rate women as most attractive when they have a waist size that's 60 to 70 percent of their hip size. And guess who is the archetype of the ideal female body type that's most attractive to men?
African Americans had the highest mean values for nearly all measures related to acetabular morphology (depth, DWR and LCE), except the acetabular width; this shows African American hips are characterised by wider and deeper acetabular sockets and have greater lateral extension of the acetabulum.
APPLE or 'O' or DIAMOND SHAPE
The high hip is wider than the lower hip. The bust and/or midriff are larger than the hips. People with this body type tend to be short waisted, with the thighs/hips being the narrowest part of their bodies.
Hourglass Body Shape
One of the most desired body shapes is an hourglass one. It looks the most balanced of all, and if you have this body shape, then it means your hips and bust measurements are equal in size, and you have a waist that is well-defined and narrower than your bust and hips.
Puberty – Increased hormones in a child's body during puberty (between the ages of 10 and 14 for girls and between the ages of 12 and 16 for boys) leads to growth and possible expansion of “baby fat” areas. This typically takes place in girls' belly, breast area and hips. Boys' shoulders will get broader.
The main reason that you may have skinny legs is your genetics. Everyone is predisposed to carry fat and muscle in different areas of the body. It's possible that your genetics make it difficult for you to grow big legs, even if you're able to easily build muscle in your upper body.
Lean body mass in girls diminishes from approximately 80 percent to 75 percent by the end of puberty, while the amount of body fat increases. In comparison, the percentage of lean muscle mass in boys increases from about 80 percent to 90 percent by the time they reach adulthood.
If someone is skinny and wishes to change it, it's possible. Longing for much bigger, thicker thighs is not enough and it doesn't matter whether someone aims at increasing core strength or just looking better in general. The calorie intake and the workouts put into the hips and thighs have a major part.
Usually, we consider hip sizes above 36 or 37 inches curvy and hip sizes below 34 to be a slim silhouette. Also, the waist-to-hip ratios of curvy individuals are often in the range of 0.7 to 0.8.
If you are going through puberty (which happens gradually over several years) you may notice your breasts getting fuller and your hips/thighs getting wider. Some girls also gain a bit of weight during this time, too. All of this, along with your first period, are simply signs that you are getting your adult woman body.
Widening of the hip bones occurs as part of the female pubertal process, and sex hormones in females (estrogens) cause a widening of the pelvis as a part of sexual differentiation. Hence females generally have wider hips, permitting childbirth.
In fact, the size of body fat cells tends to increase at a greater rate in females than males starting at the age of eight, due to the onset of puberty and an increase in female hormone levels.
Hormones drive the deposition of fat around the pelvis, buttocks, and thighs of women and the bellies of men. For women, this so-called sex-specific fat appears to be physiologically advantageous, at least during pregnancies. But it has a cosmetic down-side as well, in the form of cellulite.