Additional Study Information: Over 11 million people in the U.S. provide unpaid care for adults with Alzheimer's Disease (AD) or other dementias, contributing 15.3 billion hours of care every year. About 2/3 of caregivers live with the patient in the community. 2/3 are women. Although AD caregivers report that caregiving is rewarding, they also report high levels of stress and loneliness. Evidence shows that exercise reduces stress, improves mood, and reduces the risk of premature disease and death, but AD caregivers are significantly less physically active than non-caregivers, largely because they are limited in their ability to leave home and engage in physical activity. To reduce the health risks of caregiving in a way that recognizes the limitations caregivers experience, the department of Behavioral Medicine at Columbia University has designed an exercise research study in which the effect of a 6-week high-intensity interval training program is evaluated. The great advantage of this exercise program is that it is entirely home-based and remotely administered. Eligible caregivers receive free exercise equipment and compensation up to $190. We measure improvements in aerobic capacity, circulating inflammatory markers, nervous system regulation of the cardiovascular system, and mood. Find out if you are eligible now by visiting the study website at https://redcap.link/adcaregiver.