Psyllium is a fiber supplement, used primarily for the treatment of constipation due to its being a good source of soluble fiber. As a supplement, psyllium is derived from the seed husks of a plant called Plantago ovata.
Social theory is interdisciplinary and draws upon ideas from fields as diverse as anthropology and media studies. Social theory of an informal nature, or authorship based outside of academic social and political science, may be referred to instead as  social criticism  or  social commentary .
Social constructivism is a sociological theory of knowledge that applies the general philosophical constructivism into the social.he concept has a long theory in sociological and philosophical thought, but the term has been coined by Peter L. Berger and Thomas Luckmann with their book The Social Construction of Reality.