Why is weight loss important to overall health?

Weight management is important to overall health because it affects every aspect of a person.
It affects the cardiovascular system as well as the muscles, bones, and joints.
It affects the endocrine system and how well your body responds to certain nutrients,
specifically carbohydrates. It affects blood pressure and circulation. Excessive weight creates a higher level of inflammatory state, which affects the arteries and increases the risks for heart attacks and strokes.

Besides just feeling better and being able to move better and decrease the risk of injuries just in normal functional daily movements. Weight loss also affects self-esteem and personal self-recognition. Physiologically it literally helps you breathe better because your ribs are expanding against a lower weight to help air move into the lungs with respect to joints.

If you think about all of your body weight from your thighs up, all of that is concentrated into two relatively small surface areas. We call them the knees and the ankles/feet.
When you take that much weight and concentrate it down into a smaller area, it increases
the pressure on those joints. For example, for every pound of excess weight, your knees experience an additional 3-4 pounds of pressure, meaning a 10 pound weight gain can lead to 30-40 pounds of extra pressure on the knees. Similarly, a 10 pound weight loss can decrease 30-40 extra pounds of pressure on the knees. This calculation is similar for the ankles and feet as well.

To keep your lower extremities and your joints healthy, maintaining a proper body weight is vital. Only body weight that is deposited anteriorly in the abdominal area creates more pressure on the lumbar spine and the back in general. As someone develops a positive extra weight around their belt line, their whole posture begins to tilt forward, putting more stress and strain on the hips, the Sacroiliac joints of the waist and the lumbar spine, and this will lead to more wear and tear in these areas. The huge majority of lumbar spine degeneration is related to certain activities and injuries and what has occurred to you in your life, and also on a daily basis. Just what forces are pulling your torso forward that have to be counteracted by the lumbar spine holding it backwards and to keep us upright?