HEALTH RISKS OF OVERWEIGHT AND OBESITY
Overweight and obesity are chronic, complex conditions that significantly increase the risk for a
wide range of serious health problems. These risks generally increase as body mass index (BMI)
rises, though even a slight excess in weight can initiate health complications.
Core Chronic Diseases
Excess body fat is a major risk factor for several life-threatening noncommunicable diseases:
ï‚· Cardiometabolic Conditions: Obesity is the leading risk factor for Type 2 diabetes,
with nearly 9 in 10 patients being overweight or obese. It also frequently leads to
metabolic syndrome, a cluster of conditions including high blood pressure
(hypertension), high blood sugar, and abnormal cholesterol levels.
ï‚· Cardiovascular Disease: It contributes to plaque buildup in arteries, increasing the
likelihood of heart attack, stroke, and heart failure. For every five-point increase in
BMI, the risk of heart failure can rise by over 30%.
ï‚· Cancer: Obesity is causally linked to at least 13 types of cancer, including breast (after
menopause), colon, rectum, kidney, liver, and pancreatic cancers.
ï‚· Kidney & Liver Disease: Excess weight can damage the kidneys and lead to chronic
kidney disease. It is also a primary cause of nonalcoholic fatty liver disease (NAFLD),
which can progress to liver failure.
Mechanical and Structural Impacts
Carrying extra weight places direct physical strain on the body's systems:
ï‚· Respiratory Issues: Fat deposits around the neck and abdomen can compress the
airways and limit lung expansion. This leads to conditions like obstructive sleep apnea,
asthma, and obesity hypoventilation syndrome.
ï‚· Joint and Bone Health: The mechanical load on joints, particularly the knees and hips,
significantly increases the risk of osteoarthritis. It is also a risk factor for gout.
Reproductive and Mental Health
ï‚· Reproductive Complications: Obesity can lead to infertility in both men (lower sperm
quality) and women (ovulation issues). During pregnancy, it increases the risk of
gestational diabetes, preeclampsia, and complications for the baby.
ï‚· Mental Health: There is a strong correlation between obesity and mental health
disorders, including depression, anxiety, low self-esteem, and body image problems.
Losing even a modest amount of weight—5% to 10% of total body weight—can significantly
lower the risk of developing these conditions or improve existing symptoms.
- Tailored Exercise and Movement: Physiotherapists design safe, personalized exercise plans (including aerobics and strength training) that consider joint health and cardiovascular fitness, ensuring sustainable, long-term weight loss.
- Pain Reduction and Improved Function: Therapeutic exercises and manual techniques reduce pain in joints (such as knee osteoarthritis) and improve mobility, making daily activities easier.
- Metabolic and Cardiovascular Boost: Physical activity increases resting metabolic rate and improves heart health.
- Prevention of Sarcopenia: During weight loss, it is vital to maintain muscle mass. Physiotherapists provide strength training to prevent the loss of muscle, which is often called sarcopenia.
- Injury Prevention and Safety: They provide guidance on proper movement mechanics to avoid injuries during exercise and, in some cases, help with gait and balance to prevent falls, particularly in individuals with higher body fat percentages.
- Pre- and Post-Bariatric Support: Physiotherapists help patients prepare for and recover from weight-loss surgeries, ensuring safe rehabilitation.
- Lifestyle Coaching: Beyond exercise, physiotherapists offer guidance on lifestyle modifications to support overall health.