Tungesvik was born in
Skånevik Municipality in
Hordaland, Norway. He graduated from the
University of Oslo with a
cand.med. degree in 1964 and became a specialist in
psychiatry in 1975. He had his own practice from 1985 to 2008. From 1995 to 1997 he was associated with Modum Bads Nervesanatorium, an institution for the treatment of mental disorders in
Modum Municipality. Tungesvik was a member of the
municipal council for
Kvinnherad Municipality from 1967 to 1969 and on the municipal council for
Etne Municipality from 1971 to 1975. He was elected to the
Norwegian Parliament from
Hordaland in 1977, and was re-elected on one occasion. He was the chairman of
Noregs Mållag from 1965 to 1970. ==Personal life==