Reminding people that a deleterious behaviour is less prevalent in the population than assumed (a descriptive norm) leads to decreased engagement with the negative behaviour.
Thus, although we may know what drives WP smoking in youngsters, no studies have ever quantitatively assessed the magnitude of normative beliefs' influences among university smokers on WP dependence, a more deleterious behaviour for health.
Depending on the situation, individuals may engage in short-term deleterious bullying behaviour in order to gain a social advantage over others.
10 Drukker et al 32 found that higher levels of community informal social control in the Netherlands may directly prevent young people from engaging in deleterious health behaviours as well as indirectly provide them with self-confidence and a sense of protection.
This allows the classification of mutations according to their long-term evolutionary behaviour: deleterious mutations will be selected against and thus never get fixed in a population, effectively neutral mutations will accumulate by random drift as if they had no effect on fitness and advantageous mutations will accumulate faster than neutral ones due to positive selection.
It is always possible that the integration site is deleterious or alters cell behaviour, as it could theoretically happen in other clonal methods such as viral infection.
However, our findings on these young, generally healthy adults, who were unaware of their levels of arterial stiffness, link well with previous findings on the deleterious effects of sedentary behaviour on health, and may suggest a possible pathway through which too much sitting may lead to a higher risk of mortality.
The potential hazards of prolonged sitting in the workplace were first highlighted as early as the 17th century when the distinguished occupational physician Ramazzini [ 13] reported that relationships between sedentary behaviour and deleterious health consequences were evident in workers whose occupations required them to sit for long hours.
Our protocols, which were approved by the University of British Columbia and Carleton University Animal Care Committees, were validated in a parallel study involving three independent assessments to demonstrate biopsy and insertion of a biotelemetery device was without deleterious effects to immediate behaviour or survival of sockeye salmon (Cooke et al. 2005).
However, the high correlation between food intake in the school lunch and food intake in the test when the speed of eating was experimentally increased provides compelling preliminary evidence that the rapid consumptions of food during school lunches is deleterious to healthy eating behaviours.
Finally, pleiotropy can mean that cheating incurs a cost because it has deleterious effects on a second behaviour necessary for growth or persistence.
