Beating the Winter Blues: Why Ketamine Works for SAD (Southlake, TX)

Beating the Winter Blues: Why Ketamine Works for SAD (Southlake, TX)
Dr. Farhan Abdullah
January 12, 2026
7 minutes

It’s January. The holidays are over. The decorations are down. And if you live in Texas, the weather can’t decide if it wants to be 70 degrees or freezing rain.

For a lot of my patients here at Magnolia Functional Wellness, this is the hardest time of the year.

You wake up, and it’s dark. You leave work, and it’s dark. You feel heavy. You feel like you’re wading through concrete. You might tell yourself it’s just the "post-holiday slump," but for millions of people, it’s something much more clinical.

It’s Seasonal Affective Disorder (SAD).

In the medical world, we used to treat this lightly. We’d tell patients to "get outside more" or "buy a happy lamp." And while Vitamin D and light therapy have their place, they often act like a band-aid on a bullet hole.

If you are feeling that deep, hibernation-mode depression right now, I want you to know two things. First, it’s not in your head; it’s in your biology. And second, we are seeing incredible results using Ketamine therapy to break that cycle rapidly.

It’s Not Just "The Blues" (The Biology of SAD)

I hate the term "Winter Blues." It sounds cute. It minimizes what is actually a debilitating neurochemical shift.

When sunlight decreases, your body’s circadian rhythm gets thrown off. For susceptible people, this triggers a drop in Serotonin (the "happy" neurotransmitter) and a disruption in Melatonin (the sleep hormone).

But here is the part most doctors don’t explain. When you spend months in a low-serotonin, high-stress state, your brain physically changes. The neural pathways that govern mood and motivation become rigid. We call this "synaptic loss."

Think of your brain like a garden in winter. The branches (dendrites) shrivel up. The connections between neurons get weaker. This is why you feel "stuck." You literally don’t have the neural architecture to feel motivated.

This is why traditional antidepressants (SSRIs) can be frustrating for SAD. They take 4 to 6 weeks to kick in. By the time they start working, winter is almost over, and you’ve lost months of your life to the couch.

Why Ketamine is a Game Changer for SAD

At our clinic here in Southlake, we approach SAD differently. We don’t have time to wait 6 weeks. We want you feeling better now.

Ketamine works on a completely different system than antidepressants. It targets the Glutamate system.

If SSRIs are like slowly dripping water onto a dying plant, Ketamine is a thunderstorm. It triggers a rapid release of Glutamate, which then stimulates BDNF (Brain-Derived Neurotrophic Factor).

I’ve mentioned BDNF before, but it bears repeating: It is fertilizer for your brain.

Within 24 hours of a treatment, we can see "synaptogenesis" occurring. Your neurons start sprouting new connections. The garden starts to bloom again, even if it’s still gray outside.

The "Pattern Interrupt" - SAD is often characterized by rumination. You sit inside and loop on negative thoughts.

  • "I’m so lazy."
  • "Why can't I get anything done?"
  • "I just want to sleep."

Ketamine shuts down the Default Mode Network (the part of the brain responsible for that negative voice). It gives you a "pattern interrupt."

I had a patient last winter—a successful guy from right here in Southlake—who came in during a bad SAD episode. He hadn’t been to the gym in a month. He was withdrawing from his family.

He did one session. The next day, he told me, "Doc, the heavy blanket is gone."He didn't suddenly love winter, but the crushing weight was lifted. He had the energy to get up and move.

What We Do at Magnolia Functional Wellness

I know that the idea of "psychedelic therapy" can sound intimidating if you’ve never done it.

That’s why at Magnolia Functional Wellness, we focus on safety and setting above all else. We aren't a "clinic in a box" chain. We are a medical practice.

When you come in to see us, we don’t just hook you up to an IV and leave.

  1. We Check Your Biology: We look at your Vitamin D, your thyroid, and your hormones. Often, SAD is compounded by low testosterone or nutrient deficiencies. We fix those too.
  2. The Environment Matters: Our treatment rooms aren't sterile hospital boxes. They are designed to be calming, safe spaces where you can let go.
  3. Integration: We talk about what comes up. Ketamine opens the door, but you have to walk through it. We help you set the habits (like morning light exposure and cold plunges) that keep the depression away.

Is This Right For You?

If you are dreading the next two months of winter, you don't have to just "white knuckle" it.

If you’ve tried the light boxes and the Vitamin D and you still feel stuck, it might be time to look at the hardware problem.

You live in Texas. You shouldn't feel like you’re living in a cave.

Let’s help you turn the lights back on.

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Depression
Ketamine Therapy
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