Facial expression responsible for controlling the expression differ in each case. Voluntary facial expressions are often socially conditioned and follow a cortical route in the brain. Conversely, involuntary facial expressions are believed to be innate and follow a subcortical route in the brain. Facial recognition is often an emotional experience for the brain and the amygdala is highly involved in the recognition process. The eyes are often viewed as important features of facial expressions. Aspects such as blinking rate can possibly be used to indicate whether a person is nervous or whether he or she is lying. Also, eye contact is considered
Emerging adulthood and early adulthood issue. As individuals move through emerging adulthood, they are more likely to engage in monogamous sexual relationships and practice safe sex. Across most OECD countries, marriage rates are falling, the age at first marriage is rising, and cohabitation among unmarried couples is increasing. The Western European marriage pattern has traditionally been characterised by marriage in the mid twenties, especially for women, with a generally small age difference between the spouses, a significant proportion of women who remain unmarried, and the establishment of a neolocal household after the couple has married. Housing affordability has been linked to home ownership rates, and