Common reasons for practicing sexual abstinence include : religious or philosophical reasons material reasons -LRB- to prevent conception - undesired pregnancy - or sexually transmitted disease transmission -RRB- ; psycho-sociological reasons -LRB- e.g. , clinical depression , social anxiety disorder , increasing testosterone in males , or negative past experiences -RRB- ; or , legal injunctions requiring conformity .

Common reasons to deliberately abstain from the physical expression of sexual desire include religious or philosophical reasons -LRB- e.g. chastity -RRB- , material reasons -LRB- to prevent conception -LRB- undesired pregnancy -RRB- or MISC@1 transmission -RRB- , or to conform to legal regulations .
