Gender difference is associated with the biological or physiological distinctions in either male or female species. These can be exhibited directly or indirectly. The X-chromosomes may trigger direct results of differences while indirect is characterised by the differences influenced indirectly by the hormones (Biegel, 2010). It is impossible to deny that real differences do not exist between men and women. For instance, women undergo menstruation, become pregnant and breastfeed. They also have breast through which they breastfeed. On the other hand, men have plain chest, more testosterone in their bodies and grow beards. The X-chromosomes in men and women is different, and men has XY chromosomes while female have XX chromosome (Fine, 2010).
According to Abernethy (1997), the total muscle mass in the female is less as compared to that in male. Consequently, the muscle mass in the male bodies results into more fibres. This makes males physically stronger than the female. Consequently, in women food is converted into fats while in men food is transformed into muscle and disposable circulation energy reserves. There is a distinction in the way men and women communicate. Communication is a task performed by the brain, and women tend to be emotional in their expressions. They also express verbal nuances and cues when communicating (Talbot, 2010). This explains why male new-borns are more fascinated in objects, and female babies respond more eagerly to the human voice than do male infants (Bradley, 2007).
Body hair is more commonly seen in males than females. Males have a variety of hair especially on the chest, back, face and abdomen. In contrast, female have hairs that are very small and cannot be seen easily. The rate of growth of female hair is slow as compared to men, who grow hair faster and also lose it faster as baldness is common in male than female (Pinker,2008). There is also an extraordinary distinction in the way of thinking. This means the brains of males and females operate differently. Kimmel (2000) claims that there is a portion in the brain called splenium, which makes men and women think or process information differently. It is much large in women than in men.