1 Research shows youâre around 400% more likely to have too much iron than not enough â and this can pose serious risks to your health. 2  In one study of more than 1,000 people, only 3 percent were iron deficient, but 13 percent had iron overload.
According the Bureau of Printing & Engraving, the average lifespan of a $100 bill is about 22 years.ccording the Bureau of Printing & Engraving, the average lifespan of a $100 bill is about 22 years.
For instance, birth and marriage certificates, copies of wills, Premium Bond certificates, share certificates, mortgage papers are all worth hanging on to. While household bills and bank statements should be kept for at least two years, and insurance documents as long as they are valid. When it comes to tax-related paperwork like payslips, P45s and so on, HM Revenue and Customs (HMRC) suggests keeping them for at least 22 months from the end of the tax year they relate to.