As you enter your forties, you are also entering perimenopause, when levels of your sex hormones progesterone and estrogen decline. Besides regulating your menstrual cycle and reproductive functions, these hormones also impact restful sleep and relaxation. A decrease in progesterone and estrogen levels may lead to sleep disturbances, restlessness, and insomnia.1 Because changes in sleep patterns have been associated with weight gain, sleepless nights may make weight loss increasingly difficult.2
Sleeping enough is important, and if your lifestyle is making you cheat sleep, then think about what you can do to get enough. Sometimes, however, biology is keeping you from enough shuteye, and it's imperative to solve that. "Untreated obstructive sleep apnea can lead to additional weight gain," says Dr. Stanford. If you are making all the right efforts to get restorative sleep and still don't feel restored, consider seeing a sleep doctor, who can drill down on the problem and help you find some solutions.
1. Eat less added sugar, processed food and refined grains (white bread, bagels, pasta, white rice, you know the drill). A lot less. According to the sugar science department at UCSF, added sugar is hiding in 74% of all packaged food. And, the majority of carbohydrates in the typical American diet is made of refined grains. This means reading labels folks and knowing how many different names there are for sugar. Just because it’s called “agave nectar” or “cane juice crystals” doesn’t mean it’s any better for you than the white granulated stuff. Your body doesn’t know the difference and once you eat it, it’s all the same to your pancreas (the organ that produces insulin in response to sugar). Click this link to see 61 different names of sugar then run to your pantry and read the ingredients on your packaged food. Prepare for a rude awakening!
Additionally, attempts to lose weight on low-calorie diets can lead to even more lost muscle. Studies have found that regular resistance or strength training may be a better alternative than your daily runs to preserve and gain muscle — even when coupled with a low-calorie diet. Aerobic exercise is still important, just don’t make it your only form of activity.