Sometimes it’s hard to tell. Not sure? Try this: Drink a glass of water when your belly growls and wait 20 minutes. If you’re really starved, you may develop these hunger cues: a headache, irritability, fatigue or brain fog.

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Many mattress stores have a diagnostic system called “bedMATCH” that will measure a person and recommend a mattress with the right amount of support. If that is not available in your area, spend at least 15 minutes on store mattresses before you buy in your preferred sleeping position, advises Robert Oexman, DC.

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If you want to lose weight, best to do cardio first, then lift weights. But if you want to build muscle, then lift first and do cardio after, according to Life Fitness.

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