Hazards of smoking

• Tar contains substances that cause cancer
• Tar irritates the airways
• tar cause yellowish nails and teeth.
• nicotine causes addiction
• nicotine narrows blood pressure and raise blood pressure
• Carbon monoxide reduces oxygen capacity in the blood
• speeds up ageing and cause wrinkles
• smoking increases risk of stroke
• smoking can lead to heart disease
• smoking damages lungs and makes it harder to breathe
• Smoking cause oral cancer
• smoking cause heart disease
• smoking cause stomach cancer
• First-hand smoking. = smoker
• second-hand smoke = smoke breathed by a burning cigar
• third hand smoke= chemicals released by a smoker left on clothes and hair
• the smokers smoke can harm pregnant women , babies , unborn babies