Mental fatigue does not always come from overthinking,
Sometimes the real issue is having to make too many decisions throughout the day,
What to cook, what the child will wear, which email to answer first at work, which household task to postpone,
For women, these decisions are often invisible yet constant,
And this load is not carried the same way throughout the menstrual cycle,
Decision making is an energy consuming function of the brain,
The prefrontal cortex is especially active in this process and is highly sensitive to hormonal fluctuations,
As estrogen and progesterone levels change, mental resilience and tolerance for decision making also change,
During menstruation, hormone levels are low,
In this phase, the brain prioritizes physical recovery and pain management,
This leads to a limitation of mental resources,
Decision making becomes harder and even small choices can feel overwhelming,
The mental fog experienced in this phase should not be mistaken for lack of motivation,
In the follicular phase, as estrogen rises, mental flexibility increases,
This period feels more comfortable for decision making and planning,
Women can cope more easily with mental load, evaluate options more clearly, and take action more quickly,
In the luteal phase, the picture changes again,
The rise in progesterone lowers the brain’s level of alertness while increasing emotional sensitivity,
This causes decision fatigue to appear earlier,
Especially for women who experience PMS, the feeling of “I do not want to think anymore” becomes pronounced,
This is not avoidance but the mind applying the brakes,
Another reason mental load becomes heavier is related to social roles,
Women often carry not only their own decisions but also the needs of others in their minds,
This multilayered cognitive load becomes harder to tolerate in certain phases of the cycle,
Cycle awareness provides critical relief here,
Instead of expecting the same mental performance every day, seeing some days as observation and simplification days rather than decision making days reduces mental burnout,
Because sometimes the healthiest decision is not making a decision at all.
