As of 2014, a person living in the United States celebrates, on average, 78 birthdays overall. Women enjoy more birthdays then men, seeing 80 of the calendared events while men mark the passage about 75 times.
In Swaziland, the average life expectancy is only 32 years, while people live, on average, 82 years in Japan. The oldest confirmed age a person has reached is 122 years old.
Life expectancies throughout the world are based on diet, public health policies, and medical care and treatment. The climate factors into the equation as well.
As of 2014, the top 10 countries with the longest life spans were Japan, Hong Kong, Iceland, Switzerland, Australia, Spain, Sweden, Israel, Macau and France. Canada and Italy were 11th and 12th.