A scientific explanation as to why the RH in my humidors have taken a SHARP hit lately and how to fix it.

A couple weeks ago I posted ( http://www.reddit.com/r/cigars/comments/13viju/my_heartfelt_beads_cannot_maintain_a_proper_rh_no/ ) asking why I was having a hell of a time trying to keep humidity in my humidors and how to fix it. Ive since managed to get them both up to 65% but its been a battle. This morning I was spammed by cigars.com but the content within provided a useful answer and possible solution to my original question. Here is why your humidor takes a dip and what you can do to try and curb it.

"Fluctuating humidity levels commonly occur throughout all humidors; it doesn’t matter what shape, size, or brand of humidor you own, you will always have small fluctuations in humidity on a week by week basis. The biggest fluctuations occur when the seasons change, which is why it is incredibly important to “season” your humidor four times each year as the weather changes, especially when winter arrives. Why is this so important during winter? When the outside temperature drops and becomes very cold, the amount of water the air can hold drastically decreases. When this cold air enters your home and warms up, it can now hold more water, which drops the relative humidity inside your house, thus directly affecting your humidor’s humidity levels by causing them to drop as well. Since the warmer air can now hold more water, your humidor will need “seasoned” again to reintroduce more moisture to your cigars and in turn, restore your humidor’s humidity level to the proper 70%. When re-seasoning your humidor, don’t be afraid to add additional humidification elements."