There are several physical differences between men and women that are easily observable with the naked eye. These differences are largely due to the influence of sex hormones—primarily testosterone in men and estrogen in women—which begin to shape the body during puberty and continue to have effects throughout life. Though individuals may vary, the following are the most common visible distinctions.

**1. Body Structure and Size:**

Generally, men are taller and have broader shoulders compared to women, who typically have wider hips and a shorter stature. This difference in body proportions stems from bone growth patterns influenced by hormones. Men tend to have longer limbs, larger hands and feet, and more angular body shapes. Women usually have a more rounded appearance due to fat distribution, especially around the breasts, hips, and thighs.

**2. Facial Features:**

Men and women also differ in facial structure. Male faces usually have more prominent brow ridges, a squarer jawline, and a broader chin. These features give the face a more angular and rugged appearance. Female faces tend to have higher cheekbones, a smaller chin, and a softer, more rounded jawline. The forehead in women is often more vertical, and the lips may appear fuller due to fat distribution.

**3. Hair Distribution:**

Body and facial hair is another noticeable difference. Men typically grow more facial hair, such as beards and mustaches, and have more body hair on the chest, back, and arms. Women, by contrast, have finer and less visible body hair. This difference is mainly due to higher testosterone levels in men, which stimulate hair growth in these areas.