Hormones significantly influence fat storage and energy levels in the body. Key hormones include insulin, which promotes fat storage, and glucagon, which encourages fat breakdown for energy use. When insulin levels are consistently high, often due to excessive sugar intake, the body tends to store excess energy as fat. Conversely, hormones like adrenaline and noradrenaline mobilize energy for immediate use. This hormonal balance is crucial for maintaining metabolic health and managing weight effectively.