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.
an inborn pattern of activity or tendency to action common to a given biological species. 2. a natural or innate impulse, inclination, or tendency. 3. a natural aptitude or gift: an instinct for making money. 4. natural intuitive power.