Outgoing people are 50 percent less likely to develop dementia. Researchers speculate that their more resilient brains may be due to lower levels of cortisol -- studies show that oversecretion of this "stress hormone" can inhibit brain cells' communication.
You run/brisk walk for 40 minutes a day
Middle-aged people who run/brisk walk for a total of about 5 hours per week lived longer and functioned better physically and cognitively as they got older. They didn't just get less heart disease -- they also developed fewer cases of cancer, neurological diseases, and infections.
You like raspberries
Dietary fiber helps reduce total and LDL cholesterol, improve insulin sensitivity, and boost weight loss. Raspberries are high in fiber.
You feel 13 years younger than you are
Feeling youthful is linked to better health and a longer life. It can improve optimism and motivation to overcome challenges, which helps reduce stress and boost your immune system and ultimately lowers your risk of disease.
You embrace techie trends
Learn to Twitter, Facebook, or Skype to help keep brain cells young and healthy. Stay connected to friends, family, and current events, and you feel vital and relevant.
You started menopause after age 52
Studies show that naturally experiencing it later can mean an increased life span. Women who go through menopause late have a much lower risk of heart disease.
You make every calorie count
Men and women who limit their daily calories to 1,400 to 2,000 were literally young at heart -- their hearts functioned like those of people 15 years younger
You had a baby later in life
If you got pregnant naturally after age 44, you're about 15 percent less likely to die during any year after age 50. If your ovaries are healthy and you are capable of having children at that age, that's a marker that you have genes operating that will help you live longer.
Your pulse beats 15 times in 15 seconds
That equates to 60 beats per minute -- or how many times a healthy heart beats at rest. Most people have resting rates between 60 and 100 bpm, and the closer to the lower end of the spectrum, the healthier. A slower pulse means your heart doesn't have to work as hard and could last longer.
You don't snore
Snoring is a major sign of obstructive sleep apnea, a disorder that causes you to stop breathing briefly because throat tissue collapses and blocks your airway. In severe cases, this can happen 60 to 70 times per hour. Sleep apnea can cause high blood pressure, memory problems, weight gain, and depression.
You have a (relatively) flat belly after menopause
Women who are too round in the middle are 20 percent more likely to die sooner, even if their body mass index is normal. At midlife, it takes more effort to keep waists trim because shifting hormones cause most extra weight to settle in the middle.