1. Wearing red: Two University of Rochester psychologists found women wearing red capture men's attention and make them feel amorous - though they are unaware of the effect.
2. Stop being funny: Men find very funny women a turn-off and are even intimidated by them, a project from three leading American universities claimed.
3. Full lips: A Manchester University study concluded that women with fuller lips and/or wearing lipstick are more attractive to men.
4. Brown or black hair: Contrary to traditional belief, a recent study from the social network site Badoo concluded that men prefer brown or black hair to blondes.
5. Long arms: Researchers at the University of New South Wales in Sydney found women with long arms were perceived as more attractive than those with long legs.
1. Wearing red: A study from the University of Rochester and University of Munich revealed men wearing red are more attractive, desirable and are seen as having a higher status in the eyes of women.
2. Deep voice: According to a new survey from the University of Aberdeen, women find men with lower-pitched voices more memorable.
3. Feminine-looking men: Another study from the University of Aberdeen found that women in the developed world now prefer more feminine-looking men with full lips and delicate cheek bones - as opposed to a square jaw, low brow and muscles associated with traditional manliness.
4. Powerful or moody: Researchers from the University of British Columbia in Canada said women are least attracted to smiling, happy men, instead preferring those who look proud and powerful or moody.
5. Scars: A survey published in the journal Personality and Individual Differences found facial scars increase women's rating of men's attractiveness in the short-term.