Curious whether you're on track to live a long, healthy life into your golden years? Most health professionals would tell you to hop on a scale, since numbers like weight and BMI (body mass index) are often used to predict your chances of developing certain diseases and your life expectancy overall. The problem? Neither weight nor BMI is truly an accurate or adequate measure of your health.

Your walking speed may be an even better health indicator than your weight, according to research.

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That's because "weight and BMI are not customized to sex or body type, nor do they take into account muscle mass, bone density, overall body composition and ethnic differences," says John P. Higgins, MD, a sports cardiologist and professor of cardiovascular medicine at The McGovern Medical School at The University of Texas Health Science Center at Houston (UTHealth).

Take, for example, a bodybuilder with a dense muscle mass. He or she may erroneously fall into an overweight or obese classification for weight or BMI. Conversely, these metrics don't address the problem of normal-weight obese people, otherwise known as "skinny fat" (we hate the term, too), who appear thin with average BMIs but have a high percentage of body fat and an increased risk of cardiovascular disease, per a May 2015 study in Cardiovascular Diabetology.

Wondering how to calculate your calories for weight loss? Download the MyPlate app to do the job and help you track your intake, so you can stay focused and achieve your goals!

Instead of putting too much weight on weight, a growing body of research is finding other measures that may be useful tools for evaluating your health and risk of disease. In fact, these four metrics walking speed, push-up ability, grip strength and waist circumference can reveal more about your state of health than any scale. The best part? You can track them yourself.

Note: Even though you can calculate these metrics on your own, they shouldn't substitute for visiting the doctor or getting regular checkups. Better yet, as you gather these measurements at home, share them with your medical provider who can best analyze the numbers for a fuller picture of your health.

How fast you stroll is linked to how long you live, according to a June 2019 study published in Mayo Clinic Proceedings. Researchers found that brisk walkers enjoy longer life expectancies than those with a slower stride, regardless of their BMI. Perhaps this is because walking as opposed to weight is a functional measure of several important things: "Walking tests balance, coordination, lower limb and core strength, as well as cardiovascular health," says Dr. Higgins. Essentially, you need to be in good physical shape to keep up a swift pace.

How to Measure Your Walking Speed:

Walk 1 mile. Then divide the number 60 by how minutes it took you to walk the mile. For example, if you spent 30 minutes strolling, your speed would clock in at 2 miles per hour.

Alternatively, time yourself as you walk 6 meters. Divide the number six by how many seconds it took you to complete the 6-meter walk. So, if you walk six meters in three seconds, your pace is 2 meters per second.

Ideally, you should aim for a walking speed that's at least 2.4 miles per hour (that's a 25-minute mile) or 1 meter per second.

Since push-ups work your entire body and require strength and endurance the number you can complete is another predictor of your overall health status. "Push-ups are a good measure of both upper body and core strength, as well as cardiovascular health," Dr. Higgins says. "In short, the more push-ups you can do, the stronger and better cardiovascular system you have."

As a matter of fact, a longitudinal cohort study of 1,100 adult men found that those who could perform more than 40 push-ups had a significantly lower risk of developing heart disease compared with participants who could complete fewer than 10 push-ups, per research published in the February 2019 issue of JAMA Network Open.

How to Measure Your Push-Ups:

Try to perform as many push-ups as possible with perfect technique before tiring. Aim to work your way up to 50 to 100 push-ups per day, Dr. Higgins says.

Your grip strength is a surprisingly good health indicator.

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Oddly enough, your ability to squeeze a grip meter can forecast whether you'll live to a ripe old age. But why? Well, grip strength may help to identify muscle and cardiovascular weaknesses. That's because how tight you can grip something relates to both your upper body strength as well as your heart's ability to handle pumping against a higher pressure (because your blood pressure rises with the act of gripping), says Dr. Higgins.

Not convinced? A study of a half million middle-aged people found that weaker grip strength was strongly linked with the occurrence of negative health outcomes, such as lung cancer and heart disease, according to research published in the May 2018 issue of BMJ. What's more, grip strength was an even better predictor of death than blood pressure or overall physical activity.

How to Measure Your Grip Strength:

To calculate grip strength, simply squeeze a handgrip dynamometer at a gym or your doctor's office. If you don't have access to a grip meter, you can use a bathroom scale, says Dr. Higgins. Simply squeeze the scale with both your hands (thumb on plate and fingers behind scale), then divide the number of pounds by two. The optimal measurement is about 110 pounds for men and 70 for women.

To improve your grip strength, you need to build muscle. Commit to resistance training two or three times per week. Dr. Higgins also suggests investing in a pair of handgrip squeezers. Do a set of 10 squeezes with each hand twice a day.

A large waist circumference can be a warning sign for future health problems. That's because waist circumference is an indicator of abdominal fat. In other words, your waist size increases as your internal fat deposits do. And excessive belly fat is associated with health conditions such as type 2 diabetes, high cholesterol, high triglycerides, high blood pressure and coronary artery disease, according to the Mayo Clinic.

Indeed, a study that looked at data from 650,000 white adults found that a higher waist circumference was connected to a greater incidence of mortality at all levels of BMI, per findings published in Mayo Clinic Proceedings.

How to Measure Waist Circumference:

On your bare stomach, loop a tape measure around your waist, just above the upper hip bone. Take the measure while you exhale (but don't suck in your tummy!). An ideal waist circumference is less than 35 inches for women and less than 40 for men, according to Dr. Higgins.

When it comes to assessing your heart health, you might also want to keep an eye on your blood pressure and cholesterol levels.

"Blood pressure is a big barometer of cardiovascular health," Dr. Higgins says. "When your blood pressure is chronically high, your cardiovascular system and/or sympathetic nervous system (responsible for your fight or flight response) is overstressed."

Whether the root cause of your increased blood pressure relates to something physical, mental or even lack of sleep, the strain on your body isn't healthy. If your blood pressure is greater than 130/80 on a regular basis, you should see your medical professional, who can help assess your situation and assist you in making healthy lifestyle changes to lower your numbers.

Cholesterol is also a good measure of cardiovascular risk, says Dr. Higgins: "The higher the bad cholesterol (LDL cholesterol), the higher the chance of heart attack and stroke."

While your cholesterol is often strongly tied to genetics, there are still actionable steps you can take to reduce your levels, according to Dr. Higgins, who suggests limiting your saturated fat intake, following a Mediterranean diet with more
plant-based foods and exercising regularly to increase your good HDL cholesterol.

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4 Health Indicators to Use Instead of Weight - LIVESTRONG.COM