Showing posts with label diet. Show all posts
Showing posts with label diet. Show all posts

Thursday, March 3, 2011

What is Obesity?


Obesity is an excess proportion of total body fat. A person is considered obese when his or her weight is 20% or more above normal weight. The most common measure of obesity is the body mass index or BMI. A person is considered overweight if his or her BMI is between 25 and 29.9; a person is considered obese if his or her BMI is over 30.

"Morbid obesity" means that a person is either 50%-100% over normal weight, more than 100 pounds over normal weight, has a BMI of 40 or higher, or is sufficiently overweight to severely interfere with health or normal function.

When To Seek Help for Obesity...


You should call your doctor if you are having emotional problems related to your obesity, need help losing weight, or if you fall into either of the following categories.

If your BMI is 30 or greater, you're considered obese. You should talk to your doctor about losing weight since you are at high risk of having health problems.

If you have an "apple shape" -- a so-called, "potbelly" or "spare tire" -- you carry more fat in and around your abdominal organs. Fat in your abdomen increases your risk of many of the serious conditions associated with obesity. Women's waist measurement should fall below 35 inches. Men's should be less than 40 inches. If you have a large waist circumference, talk to your doctor about how you can lose weight.

Wednesday, March 2, 2011

Health Problems of being overweight...


Obesity is bad news for both body and mind. Not only can it make a person feel tired and uncomfortable, carrying extra weight puts added stress on the body, especially the bones and joints of the legs. As they get older, kids and teens who are overweight are more likely to develop diabetes and heart disease.

The health problems that affect overweight teens include:

Blount's disease. Excess weight on growing bones can lead to this bone deformity of the lower legs.

Arthritis. Wear and tear on the joints from carrying extra weight can cause this painful joint problem at a young age.

Slipped capital femoral epiphyses (SCFE). Obese children and teens are at greater risk for this painful hip problem. SCFE requires immediate attention and surgery to prevent further damage to the joint.

Asthma. Obesity is associated with breathing problems that can make it harder to keep up with friends, play sports, or just walk from class to class.

Sleep apnea. This condition (where a person temporarily stops breathing during sleep) is a serious problem for many overweight kids and adults. Not only does it interrupt sleep, sleep apnea can leave people feeling tired and affect their ability to concentrate and learn. It also may lead to heart problems.

High blood pressure. When blood pressure is high, the heart must pump harder and the arteries must carry blood that's moving under greater pressure. If the problem continues for a long time, the heart and arteries may no longer work as well as they should. Although rare in most teens, high blood pressure, or hypertension, is more common in overweight or obese teens.

High cholesterol. Long before getting sick, obese teens may have abnormal blood lipid levels, including high cholesterol, low HDL ("good") cholesterol, and high triglyceride levels. These increase the risk of heart attack and stroke when a person gets older.

Gallstones. An accumulation of bile that hardens in the gallbladder forms gallstones. These may be painful and require surgery.

Fatty liver. When fat accumulates in the liver, it can cause inflammation, scarring, and permanent liver damage.

Pseudotumor cerebri. This is a rare cause of severe headaches in obese teens and adults. There is no tumor, but pressure builds in the brain. In addition to headaches, symptoms may include vomiting, an unsteady way of walking, and vision problems that may become permanent if not treated.

Polycystic ovary syndrome (PCOS). Girls who are overweight may miss periods — or not get their periods at all — and may have elevated testosterone (the male hormone) levels in the blood. Although it is normal for girls to have some testosterone in their blood, too much can interfere with normal ovulation and may cause excess hair growth, worsening acne, and male-type baldness. PCOS is associated with insulin resistance, a precursor to developing type 2 diabetes. Women who are overweight also might have fertility problems.

Insulin resistance and diabetes. When there is excess body fat, insulin is less effective at getting glucose, the body's main source of energy, into cells. More insulin becomes needed to maintain a normal blood sugar. For some overweight teens, insulin resistance may progress to diabetes (high blood sugar).

Depression. People who are obese are more likely to be depressed and have lower self-esteem.

Luckily, it's never too late to make changes that can effectively control weight and the health problems it causes. Those changes don't have to be big. For a start, make a plan to cut back on sugary beverages, pass up on seconds, and get more exercise, even if it's just 5–10 minutes a day. Build your way up to big changes by making a series of small ones. And don't be afraid to ask for help!