Metabolism typically begins to slow down around the ages of 25 to 27, coinciding with lifestyle changes such as entering the workforce and adopting more sedentary habits. Many individuals experience weight gain during this period, often linked to reduced physical activity and increased access to food, particularly junk food. Personal experiences highlight that injuries, hormonal changes, and lifestyle shifts, such as moving from an active student life to a desk job, significantly contribute to these changes. The combination of decreased mobility and increased caloric intake leads to a greater challenge in managing weight as one ages.