Weight Loss
April 28, 2026 - Professor Edward Westen, Director of the Exercise Science Program at York College, spoke to the York East Rotary Club about obesity, the growing use of weight loss medications, and the science behind why maintaining or changing body weight can be so challenging. Westen explained that obesity is a complex condition influenced by genetics, metabolism, environment, and behavior—not simply a matter of willpower. He noted that each person’s body tends to operate around a natural “set point,” a weight range that the body works to maintain through internal regulatory systems. When individuals attempt to lose weight, the body often responds by slowing metabolism and increasing hunger signals, making long-term weight loss difficult to sustain. He also discussed the recent rise in prescription weight loss drugs, including medications originally developed to treat type 2 diabetes. These drugs can help regulate appetite and improve metabolic function, leading to significant weight loss for some patients. However, Westen emphasized that they are not a universal solution and are most effective when combined with lifestyle changes such as proper nutrition, regular physical activity, and behavioral support. Westen encouraged Rotarians to think about obesity as a chronic medical condition that requires long-term management rather than a short-term fix. He stressed the importance of sustainable habits, individualized approaches to health, and reducing the stigma often associated with weight. The presentation provided valuable insight into the biological realities of weight regulation and highlighted the importance of compassion, education, and evidence-based strategies in addressing one of today’s most pressing public health challenges.