absolute twoddle. i have worked plenty of times in january straight after christmas. the job itself and the people you work with is a more important factor than the time of year. the weather's not that bad if you have some warm clothes, only pussies moan about it, in other countries it's much colder anyway. generally an unhealthy time for who? people who are unhealthy. it's weakness and pointless negativity for people with no backbone and little initiative