• Allergy Tests
• Cancer Tests
• Cardiovascular Tests
• Diabetes Tests
• Drug Tests
• Fatigue Tests
• Fertility Tests
• Health Checks
• Hormone Tests
• Mens Health
• Nutritional Tests
• STD Tests
• Womens Health

• Biochemistry
• Cytology Histology
• Endocrinology
• Genetic
• Haematology
• Immunology
• In Vivo
• Microbiology
• Nutritional Vitamin
• Occupational Health
• Theraputic Drug Assay
• Tropical Immunology
• Tumour Marker
• Virology

Serotonin

Serotonin is a chemical that transmits nerve impulses in the brain, causes blood vessels to constrict (narrow) at sites of bleeding, and stimulates smooth muscle movement in the intestines.