A weight loss plateau occurs when an individual experiences a stall in weight loss despite consistent diet and exercise efforts. This can happen due to metabolic adaptations, where the body adjusts to a lower caloric intake and becomes more efficient in energy expenditure. Strategies to overcome plateaus include adjusting caloric intake, altering exercise routines to increase intensity, and incorporating strength training. Additionally, ensuring adequate hydration and sleep can play critical roles in breaking through plateaus. By implementing these strategies, individuals can reignite their weight loss journey and achieve their goals.