The Spring Equinox arrives on March 20 this year, marking the moment when day and night are nearly equal in length. From here forward, the light begins to stretch. Mornings brighten earlier. Evenings linger. For many of us, this shift is more than seasonal — it is neurological. Light directly influences our circadian rhythm, which regulates sleep, mood, energy, and focus. As daylight increases, the brain adjusts its production of melatonin and serotonin. Some people feel an i