Although fewer females than males are born (the ratio is around 1:1.05), because of a longer life expectancy there are only 81 men aged 60 or over for every 100 women of the same age. Women typically have a longer life expectancy than men. This is due to a combination of factors: genetics (redundant and varied genes present on sex chromosomes in women); sociology (such as the fact that women are not expected in most modern nations to perform military service); health-impacting choices (such as suicide or the use of cigarettes, and alcohol); the presence of the female hormone estrogen, which has a cardioprotective effect in premenopausal women; and the effect of high levels of androgens in men. Out of the total human population in 2015, there were 101.8 men for every 100 women.
As you reach 40, your body becomes more insulin resistant, making it easier to gain weight (especially belly fat) and harder to lose it, explains Cederquist. To offset this, controlling carbs is a must, she says—even when eating healthy sources like whole grains. For example, measure out a true serving (like a half cup of cooked brown rice) when you sit down to eat, rather than eyeballing a scoop.
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A few years ago, after I clocked in at 275, it was clear that my weight was a major issue, and I needed to lose some pounds. So I started counting calories and kept to 1,500-1,800 a day (usually much closer to 1,500). Though counting calories drove me to an obsessive, unhappy state a few years before, I still did it, and I was doing OK this time around. In about six weeks time, I'd lost 10 pounds.
The best low-cal diet plan isn't a diet so much as it is a method. CICO stands for "calories in, calories out" and is based on the mathematically sensible principle that as long as you're burning more calories than you're eating, you'll lose weight. All you need to get started is a way to track your calories—there are plenty of apps on the market although a pen and paper works great too—and a food scale to keep you honest about your portion sizes. (Also read this guide on how to safely cut calories to lose weight.) People love the simplicity and straightforwardness of the plan. And while it may not be the fastest way to lose weight, you're guaranteed to have success long term. (Just know that some weight-loss experts actually don't recommend calorie counting.)