Alright, let's talk about this. Newton's Law of Universal Gravitation is

f = Gm1m2/r^2

Where

f = force of gravitation between two masses

G = universal gravitational constant, 6.67e-11 Nm/kg^2

m1 = mass of first object

m2 = mass of 2nd object

r = distance between the centroids of the two objects

Let's roll it for a dude on earth, m1 being 6e24 kg, m2 being 60 kg, r = minimum radius of the earth = 6353000 m.

= 589.8N

Let's roll it for a dude at the maximum radius of the earth = 6384000 m.

= 586.2N

So in going from Death Valley to Mt Everest you've increased the force from gravity by 12.6N. That's three pounds - we used to remember "newtons" by remembering that a "quarter pounder" is a "newton burger." Clearly, there's a force at work here.

...but how much are we experiencing from even, say, the moon?

m1 = 60kg

m2 = 7.35e22 kg

r(min) = 363104000 m

= .0021N. a fifth of a gram. Okay, how much is it at the maximum?

= .00197N. also a fifth of a gram. The difference is .00013 n, about 13 milligrams.

By way of comparison, every time you breathe you're breathing in 600 milligrams.

And that's just the moon.

To be clear - I'm not saying that we know absolutely everything there is to know about the influence of our environment on our behavior. there might be some environmental factor that loosely correlates to zodiacal signs. It sure as fuck isn't what the astrologers say, though. Same is true of Acupuncture - stabbing certain spots with needles does, occasionally, have a measurable effect. That effect is demonstrably not due to meridians, however.