4. Take steps to regulate your period. If your period is irregular and you have seen your doctor to determine that there are no major problems, you can take certain measures to help your period become more regular.
aptitude (plural aptitudes) 1  Natural ability to acquire knowledge or skill. 2  The condition of being suitable.
From Middle French aptitude, from Medieval Latin aptitudo, from Latin aptus (âapt, fitâ); see apt. Compare attitude, which is a doublet of aptitude.