In high temperatures, it is possible that your attentiveness in performing your work will flag. Personal protective equipment tends to be the first to be set aside when it becomes hot. Protective clothing and work clothing also suddenly take some odd forms (sleeves rolled up, trousers shortened and so it goes on). This is only exposing yourself even more to the blazing sun and its harmful effects, such as sunburn, dehydration, fatigue, reduced concentration, misted safety glasses, sweaty hands, etc.