Although it certainly sounds like they are, masculine and feminine energy are not gendered. Everyone has masculine and feminine energy - they’re universal energies that exist within us, regardless of our gender.
Feminine energy is widely known as Yin and masculine energy is Yang. Although we may typically visualise the traditional Yin and Yang image that’s balanced when we think about this concept, generally, people actually don’t have balanced energies and will have either naturally dominant masculine or feminine energy.
Although these energies operate across the entire body, the brain is also associated very clearly with these opposing energies. The left side of the brain is known as masculine - this part of the brain is associated with logical and analytical thinking, control, confidence, assertion, and strength. The right side of the brain is known as the feminine - this part is associated with creativity, nurturing, intuition, empathy, and emotion.