Guide

Cardio load on Fitbit is a heart based score that shows how much strain your activity places on your cardiovascular system over time.

On Fitbit, fat burn, cardio, and peak are heart-rate zones that mark moderate, vigorous, and near-max effort, used to guide training and award credits.

The cardio zone on Fitbit is a heart rate range where you train at about 70–84 percent of your maximum heart rate for steady, challenging workouts.

Cardio IQ panels test detailed cholesterol, lipoprotein particles, apolipoproteins, inflammation markers, and other lab clues for heart risk.

Cardio involves steady, rhythmic movement that raises heart rate and breathing for several minutes using large muscle groups.

A bodyweight workout builds strength, boosts heart health, and improves mobility using only your own body as resistance.

A cardio workout raises your heart rate to strengthen your heart and lungs, burn calories, lift mood, and build everyday stamina.

On sunglasses, the CE mark means the maker declares EU safety compliance, including EN ISO 12312-1 for UV and lens safety.

In sunglasses, “one size” means a single frame built to fit most faces, but real comfort depends on lens width, bridge width, and temple length.

On sunglasses, “mm” means millimeters—the unit for frame measurements like lens width, bridge width, and temple length.