 Leafs dropping may be because you're overwatering your plants, especially if they're yellowing before they drop. If this is the case, check the soil before you water it. If it feels moist, don't water. It grows away because they're not getting enough light, especially if they're long thin and reaching towards the light. Oh, they're just too cold! If your plant comes from the tropics, make sure that you keep her in a warmer space. Okay, see you in the next one!