Allergies usually happen when the immune system over-reacts to things in the environment, thus producing histamines.  Over-the-counter antihistamines often carry side-effects with them, such as drowsiness, dizziness, and depression.  ...read more

Motion and travel sickness is caused when there’s movement particularly of a boat or plane in different directions while sitting still within it.  Confusion of the balance center in the inner ear can cause nausea, dizziness, vomiting, and fatigue. ...read more

Allergies usually happen when the immune system over-reacts to things in the environment, thus producing histamines.  Over-the-counter antihistamines often carry side-effects with them, such as drowsiness, dizziness, and depression.  ...read more