Ideally, ex-smokers can gradually reduce the amount of nicotine or stop nicotine replacement therapy all at once after theyâve broken the habit of smoking. Even when used for long periods of time, nicotine replacement therapies are far safer than smoking. Quit rates range from 19% to 26%.f youâve tried to quit before and failed because the craving for nicotine was too strong, nicotine replacement therapies may help. Gum, lozenges, and patches are available over-the-counter. Nasal sprays and inhalers require a prescription.
Submit. Â· just now. Report Abuse. Blood is classified into the following types based on the type of antigens present on them and they are; A, B, AB, O and K +ve and-ve is called as Rhesus factor and it comes from Rhesus monkey. Apart from A, B, AB and O, K is a very rare kind of blood group.Watcher Â· 9 years ago. Thumbs up.ubmit. Â· just now. Report Abuse. Blood is classified into the following types based on the type of antigens present on them and they are; A, B, AB, O and K +ve and-ve is called as Rhesus factor and it comes from Rhesus monkey. Apart from A, B, AB and O, K is a very rare kind of blood group.
Within the ABO/Rhesus Group systems which are used to classify most blood types, there are several rare blood types. The rarest is AB-, with less than one percent of the world's population having this blood type.B-and O-are also very rare, each accounting for less than 5% of the world's population.lood type is determined by the presence of certain antigens in the blood. The A and B antigens are very common, making it easy to classify people by which antigen they have, while people with Type O blood have neither antigen.