Social conditions such as poverty, social isolation and inability to get or prepare preferred foods can cause unintentional weight loss, and this may be particularly common in older people. Nutrient intake can also be affected by culture, family and belief systems. Ill-fitting dentures and other dental or oral health problems can also affect adequacy of nutrition.
In 1923, Griffith developed and taught the first sports psychology university courses (“Psychology and Athletics”) at the University of Illinois, and he came to be known as “The Father of Sports Psychology” in the United States, as a result of his pioneering achievements in that area. However, he is also known as “The prophet without disciples”, since none of his students continued with sports psychology, and his work started to receive attention only from the 1960s 
Hypnotherapy is guided hypnosis, or a trance-like state of focus and concentration achieved with the help of a clinical hypnotherapist. This trance-like state is similar to being completely absorbed in a book, movie, music, or even one's own thoughts or meditations. In this state, clients can turn their attention completely inward to find and utilize the natural resources deep within themselves that can help them make changes or regain control in certain areas of their life.