Welcome back, health champions!👋

It's Saturday night. The trick-or-treaters are done, the leftover candy bowl is on the counter, and your phone cheerfully reminds you that the clocks fall back tonight. Extra hour! It's 11:40 and you're still up.

Then Monday, 5:10 p.m. You finish dinner, glance out the window, and it's already dark. The walk you took all summer just doesn't happen.

Here's the thing: the hour you gain on Sunday isn't the problem. What comes after it is.

(US clocks fall back at 2 a.m. this Sunday, November 1. Europe and the UK changed last weekend. The darker evenings apply to everyone.)

Inside this issue:

• Why the "extra hour" rarely turns into extra sleep

• How to keep your after-dinner walk when it's dark at 5

• How to use this week to move dinner earlier

• Light, mood, and the two things that matter most

BEST FINDS
Fall Produce, Rebuilt: Pumpkin gets the spotlight this time of year, but cabbage, cauliflower, Brussels sprouts and cranberries quietly do just as much work. These six recipes pair each one with protein so your plate stays steady. Pumpkin Ricotta Egg Bake - Bake it Sunday, and breakfast is handled all week at 22 g of protein per square. Shaved Brussels Sprout Salad with Chicken, Hazelnuts & Parmesan - Crisp, lemony, and it keeps for days without wilting. Thai Red Curry Pumpkin Soup with Shrimp - Pumpkin soup that’s a full meal, with 34 g of protein in every bowl. Pumpkin Turkey Chili with Black Beans - Thick, smoky and freezer-friendly, with 12 g of fiber per bowl. Mustard-Roasted Pork Tenderloin with Cabbage & Cranberry-Orange Relish - One sheet pan, plus a relish worth bringing to Thanksgiving. Brown Butter Cauliflower Mash with Crispy Sage - The mashed-potato stand-in that isn’t watery, with 8 g net carbs.

Daylight Saving Time Ends: What it Means for Prediabetes and Blood Sugar

Does the fall time change affect sleep and blood sugar?

Your body runs its own internal clock, set mostly by light. It decides when you feel sleepy, when you get hungry, and even how well you handle the sugar in a meal. The clock on your wall changes overnight. The one inside you takes several days to catch up.

That's why the "extra hour" is mostly a myth. Sleep research finds little evidence that people actually sleep longer that night. Instead, your body keeps waking you at the old time, which is now an hour early. That can go on for several mornings, so many people end the week with less sleep, not more.

That matters for blood sugar. In one small lab study, healthy adults slept about four hours for one night. The next day, the same amount of insulin moved about 20% less sugar out of their blood. One rough night isn't dangerous. A run of short nights adds up, and that's exactly what this week can turn into.

• Keep your wake-up time steady. From Sunday on, get up at your usual time on the new clock, even if you're awake earlier.

• Hold out until close to your usual bedtime. For the first few evenings, 8:30 will feel like 9:30. If you doze off on the couch early, you'll likely be wide awake at 4 a.m.

• Spend the bonus hour asleep. On Saturday, go to bed at your normal time rather than staying up.

Read: Eat your way to better sleep

Why do dark evenings matter for blood sugar with prediabetes?

This is the part that matters most over the next few months.

When it gets dark early, people move less. In a Canadian study, adults with type 2 diabetes wore step counters for a year. Their daily steps dropped from about 5,700 in spring and summer to about 4,900 in fall and winter. That's roughly 760 fewer steps a day, and most people never notice it happening.

A1C (hemoglobin A1c, your average blood sugar over about three months) shifts with the seasons too. In nearly 285,000 US veterans with diabetes, it ran about 0.2 points higher in winter than in summer. Neither study looked at people with prediabetes, and the effects are modest. But both point the same way: winter makes holding steady a little harder, for reasons that have nothing to do with how hard you're trying.

If you already walk after dinner every night, this isn't asking you to do more. It's about keeping what you've built once 5 p.m. goes dark.

Keep the after-dinner walk, and change where it happens. If your street is well lit and feels safe, wear something reflective and bring a partner or the dog. If not, take it indoors: stairs, hallway laps, marching in place through a TV episode, or a three-song dance playlist. Ten minutes counts.

Doing all of this and your A1C still won't budge? That's a different problem. Read: Plateau panic? Why your numbers aren't moving

Is eating dinner earlier better for blood sugar with prediabetes?

Yes, and this is the good news hiding in this weekend.

Your body handles a meal's sugar best earlier in the day, and that ability fades toward evening. In one study, healthy adults ate the same dinner at 6 p.m. and, on another night, at 10 p.m. After the late dinner, their blood sugar peaked about 18% higher.

For the first few days after the change, your body still runs on the old time. When the clock says 5:30, your stomach thinks it's 6:30, so you'll get hungry earlier.

Let dinner move earlier, then keep it there. If you usually eat at 7, try 6 this week. For once your body is on your side, because it already thinks it's 7. The catch: within about a week your body adjusts to the new clock, and work and family schedules pull you back too. Here's how to make the earlier time stick:

• Start dinner earlier, not faster. With a sheet-pan dinner, a slow cooker or weekend leftovers, eating at 6 doesn't depend on rushing home.

• Shift in steps if your household eats late. Move dinner 25 to 30 minutes earlier at a time, rather than a full hour at once.

• If work won't allow an early dinner, make lunch your bigger meal and keep dinner lighter.

• Have Halloween candy with a meal, not at midnight. A piece or two right after dinner is very different from grazing late at night.

Read: Can You Eat Candy With Prediabetes? and Meal-Timing Magic for Prediabetes

What does light have to do with blood sugar and prediabetes control?

Light is the main signal that keeps your internal clock on time. For the next few weeks, mornings will be noticeably brighter. Use them.

Night light matters too. In a UK study, about 85,000 adults wore light sensors for a week. Over the next eight years, those with the brightest nights were up to 53% more likely to develop type 2 diabetes than those with the darkest nights. That's an association, not proof, but it's an easy thing to change.

Step outside within an hour of waking, even for 10 minutes with your coffee.

Dim the house after dinner. Use lamps instead of overhead lights, and turn on night mode on your phone. Keep enough light to move around safely. 

Does the end of daylight saving time affect mood and cravings?

If you feel flatter once evenings go dark, you're not imagining it. Danish researchers looked at national health records. After the switch to standard time, hospital diagnoses of depression rose 11%, and the rise faded over about 10 weeks.

Low mood rarely announces itself. It shows up as a skipped walk, an extra snack after dinner, or staying up scrolling. That's biology meeting a darker season! Be as patient with yourself this month as you would be with a friend. If the low feeling lasts more than a couple of weeks, tell your doctor or care team.

Reset your glucose meter after the time change

• Check your glucose meter's clock. If you test with a meter, it may keep its own time and need resetting by hand. If you wear a CGM (continuous glucose monitor), make sure its app shows the new time. Use neither? Skip this one.

• Check timed medications. If you take something at a set hour, ask your pharmacist whether to shift it.

The bottom line

The clock change is one hour on one night. The darker evenings last until March. If you only do two things this week: keep your after-dinner walk (indoors if needed) and keep your wake-up time steady. Everything else here is a bonus.

Have questions? We got answers. Email [email protected]