Personality refers to a consistent way of thinking, feeling and behaving; these characterise a person’s response to life’s situations. This is a distinctive behaviour pattern helps define a person’s identity. Personality types describe the differences between different individuals and are normal. However, personality disorders are pathological.

High blood pressure is a common condition in which the force of the blood against the artery walls is high such that it eventually causes health problems, such as heart disease and stroke. The normal blood pressure in an adult ranges from 100-140mmHg systolic to 60-90mmHg diastolic.

Shortened sleep can increase CRP, or C-reactive protein, which is released with stress and inflammation. "If your CRP is high, it's a risk factor for cardiovascular and heart disease," says Zee. Shortened sleep also interferes with appetite regulation. "So you may end up eating more or eating foods that are less healthy for your heart," Zee says.

When deciding which drug to use, consider specific itinerary, length of trip, cost of drug, previous adverse reactions to antimalarials, drug allergies, and current medical history.

All travelers should seek medical attention in the event of fever during or after return from travel to areas with malaria.

Antibiotics do not fight infections caused by viruses like colds, most sore throats and bronchitis, and some ear infections. Unneeded antibiotics may lead to future antibiotic-resistant infections. Symptom relief might be the best treatment option.