An exercise device for seated exercising and heat therapy includes a chair, to which a plurality of biasers is operationally engaged. A pair of footrests and a pair of handrests are operationally engaged to the chair. Each footrest and each handrest is engageable to an associated foot and an associated hand of the user, respectively. The footrest is operationally engaged to a respective biaser so that the respective biaser is positioned to resist movement of the footrest relative to the chair. The handrest is operationally engaged to a respective biaser so that the respective biaser is positioned to resist movement of the handrest relative to the chair. The footrests and the handrests thus are useful in exercising feet and hands of the user, respectively. A plurality of heating elements, which is engaged to the chair, the footrests, and the handrests, can warm an abdomen and joints of the user.