No, refrigerators do not emit anything. The only thing that could happen is if you left food in it forever at it rotted.
Eating curd before sleeping is bad for health, as it causes digestion disorder. This may in turn cause ulcerous problem. Even curd should be taken after lunch but without sugar for better result.
There are no known health issues associated with sleeping under a box fan. If the area is dusty however, it can cause allergy problems.
Get a hoe to due!!
lung disease
Not sleeping does not make you shorter, it can affect your health though. Not getting enough sleep or none at all can cause lots of problems.
intractable hiccups, which are hiccups that last months, can cause health problems and may be a sign of serious health problems.
Eating too much anything can cause health problems. Go for balance.
it aused malnutrition
Premature birth is a major cause of serious health problems in neonates.
Worrying about too many things before sleeping, you get stressed out and stops yourself from relaxing and you stay awake. == == Stress is the main problem people faces today so their is problem of sleeping disorder.
Volcanic ash can cause lung problems from breathing the ash in.
If in minute amounts, then it could not pose any problem.