In your forties, your body may have an increasingly difficult time digesting carbohydrates, which may lead to weight gain. Living a stressful life can lead to an increase in the stress-hormone called cortisol, which can make you more prone to gaining belly fat. Estrogen loss may also lead to fat redistribution in your body and cause belly fat gain.11
Developing good sleeping habits is crucial when it comes to weight loss.40 The exercise and dietary tips with discussed earlier can support your sleep cycle. Avoid sugary and caffeinated foods, especially as the evening approaches, so you can feel tired and calm, instead of jittery. Limit blue-light exposure in the evening by wearing amber glasses that block harmful wavelengths from electronics. Develop a night-time routine that calms you down before bedtime.
Good stress management techniques and routine exercise will have positive effects on your sleep, but you may need to take additional steps to help you sleep better. For example, be proactive about going to bed and waking up at the same time most days, and allow yourself 30 minutes to unwind and disconnect from your digital devices at night. Eating a plant-forward, mostly whole foods diet that’s low in added sugar helps, too.
For a sustainable plan, "I don't like to hyperfocus on calories. It's important to have a high-quality diet of lean protein, whole grains, and fruits and vegetables," Dr. Stanford says. "Processed foods lead to weight gain, so the less processed the food you eat, the better." And the more satisfied you could end up being. Her example: A nice meal of salmon plus some grains and a vegetable and a salad can give you a lot more volume than a Shake Shack stop would, and would give you more of a sense of being full afterward. When it comes to the high-quality diet she advocates, "nothing is bizarre—we know that lean protein, whole grains, fruits, and vegetables are constant no matter how the guidelines for healthy eating have changed over the years," she says.
2. Exercise More. Contrary to what your body may want to do, you must exercise more regularly as you age, not less! If you’re finding yourself slowing down, gradually start ramping it back up. It’s not a good idea to go from taking an occasional walk to running a 10K. That’s a fast track to getting an injury. But start finding ways to fit more physical activity to your life. The more you exercise, the more insulin sensitive you become (that’s the opposite of insulin resistant!)