Having trouble logging in with Google or Microsoft?
If you're using the Google or Microsoft button to log in and receive an invalid password error, please note that we are unable to assist with those login credentials. These accounts are managed by Google and Microsoft, so any issues must be resolved directly through their account recovery tools.
We can only assist with direct logins—this means logging in by entering your username or email and password in the fields above and clicking the "Log in" button. If you created an account directly on this site (not using Google or Microsoft), we can help you reset your password via the "Lost password?" link.
Aging is a biological process that affects most cells, organisms, and species. Telomeres, located at the end of chromosomes, have been postulated as a universal biological clock that shortens in parallel with aging in cells. Telomeres shorten as cells age. They consist of an evolutionarily conserved repetitive nucleotide sequence ranging in length from a few hundred base pairs in yeast to several kilobase pairs in vertebrates.
