“…Relaxation is also positively associated with positive affect (Fredrickson, 2000;Stone, Kennedy-Moore, & Neale, 1995). Deep physical and mental relaxation can be achieved by deliberately practicing relaxation techniques, such as progressive muscle relaxation (Jacobson, 1938), meditation (Grossman, Niemann, Schmidt, & Walach, 2004), and other approaches aiming at the relaxation of body and mind (Sandlung & Norlander, 2000). In everyday life, some degree of relaxation may also result from other activities that provide uplift experiences (Kanner et al, 1981), such as a light walk in a beautiful natural environment (Hartig et al, 2003) or listening to music (Pelletier, 2004).…”