If you’ve been feeling a bit flat, irritable, teary, or not quite yourself this festive season, you’re not alone — and there’s a reason this happens that often goes unnoticed.

Despite the celebrations, many people can feel emotionally flat or low at this time of year.

Here’s the problem:

The festive season changes how we eat, drink, sleep, and socialise — often all at once. 

Those shifts can affect mood more than we realise, especially when they happen together.

Alcohol is part of that picture. 

While it can feel relaxing in the moment, alcohol is a depressant and can interfere with sleep and nervous system regulation, which often shows up later as low mood, anxiety, or feeling emotionally fragile.

Overeating, including large amounts of highly processed or indulgent foods, can leave the body feeling sluggish and unsettled, and that physical discomfort can translate into feeling flat or low emotionally.

This happens because of the gut–brain axis — the two-way communication between your gut and your brain. 

How you feel affects what you eat, and what you eat affects how you feel.

The solution is paying attention.

Paying attention to how alcohol affects your sleep and mood.

Paying attention to how different foods leave you feeling afterward.

And, when there’s a festive event planned, eating nourishing meals earlier in the day to support your body beforehand.

Noticing how alcohol and food affect you is the first step toward making a change, and it gives you the chance to make small, intentional choices.

Even little shifts can reduce the ups and downs of mood and energy.

That’s why paying attention to how alcohol and food affect you right now matters more than aiming for perfection. 

Feeling low at this time of year is common, and often small adjustments in how we eat and drink can help steady things more than we expect.