Marquez Chiropractic Pain Relief

Marquez Chiropractic Pain Relief Pain relief for neck and back pain. No drugs or surgery. Safe. Affordable. Mainstream.

09/03/2026

Office will be open from 4:00-6:00 on Monday September 7th
Enjoy LABOR DAY!!

08/21/2026

Most Professional Drivers Have Low Back Pain.

A meta-analysis of data from 53 studies found that 55.3% of professional drivers experienced at least one episode of low back pain during the previous year, while 33.8% had back pain within the previous month.

Public Health, June 2024

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Thousands of Doctors of Chiropractic across the United States and Canada have taken "The ChiroTrust Pledge":

“To the best of my ability, I agree to
provide my patients convenient, affordable,
and mainstream Chiropractic care.
I will not use unnecessary long-term
treatment plans and/or therapies.”

To locate a Doctor of Chiropractic who has taken The ChiroTrust Pledge, google "The ChiroTrust Pledge" and the name of a town in quotes.

(example: "ChiroTrust Pledge" "Olympia, WA")

08/21/2026

Heart rate zones reflect exercise intensity as a percentage of a person's estimated maximum heart rate, which is commonly calculated by subtracting age from 220. For example, a 50-year-old adult’s estimated maximum heart rate is

08/16/2026

Hip stiffness, low back stiffness, shoulder ache! Better after 2 visits!!

08/16/2026

Young athlete with shoulder pain.
Decreased shoulder motion.
All better!!!

07/23/2026

Every kind of exercise seems to help the aging brain, and the more interesting question is not whether it works but which domains are tied to which types of exercise.

A 2023 systematic review and meta-analysis pooled 54 randomized controlled trials in healthy people and found that while exercise improved cognition across the board, each type of training showed its largest benefit in a different mental domain. The pattern is specific enough to be useful, and modest enough that it should not be oversold.

The analysis was built to be rigorous. It followed PRISMA methodology, drew only on randomized trials, spanned participants from childhood to older age, and scored five separate cognitive domains: global cognition, executive function, memory, attention, and information processing. It also broke each intervention down by its exercise prescription, the frequency, intensity, session length, type, total program length, and progression, so the question was never just "does exercise help" but "which kind, how much, for whom."

Three matches came out of it. Resistance training showed its greatest benefit for executive function, the brain's control system for focus, planning, and self-control. Aerobic exercise showed its greatest benefit for global cognition, overall thinking measured across domains. Mind-body practices like yoga and tai chi showed their greatest benefit for memory. These are the strongest measured pairings, not exclusive effects, and the distinction matters: every type of exercise improved every domain to some degree. What the data describe is a tilt, not a lane. Lifting was not useless for memory and cardio was not useless for focus. Each simply landed hardest in one place.

The benefit was largest in older adults. Across global cognition, executive function, and memory, the oldest participants gained more than any younger group, which fits the broader picture that the aging brain has the most room to move and the most to protect. This is where the practical value concentrates.

On dose, the trials pointed toward a moderate, repeatable pattern rather than an all-out one: the largest cognitive gains clustered around three to four sessions a week, roughly forty-five to sixty minutes each, at moderate intensity. That is an achievable prescription, not a punishing one, and it lines up with what tends to hold across the exercise-and-cognition literature. Treat the specific numbers as the center of gravity the analysis reported, not a precise threshold, since exactly where the benefit peaks varies by domain and by study.

These are specific faculties, executive function, memory, overall processing, not general intelligence, so "exercise makes you smarter" is the wrong summary; "exercise sharpens particular mental skills" is closer.

The participants were healthy, so this is about optimizing normal cognition, not treating impairment or dementia. And this is a meta-analysis of heterogeneous trials, which means the mappings are consistent tendencies pulled from many small studies, not a single decisive experiment. Exercise almost certainly does more than one thing to the brain, and the neat type-to-domain chart is a simplification of a messier, mostly overlapping reality.

Zhang M, Jia J, Yang Y, Zhang L, Wang X. Effects of exercise interventions on cognitive functions in healthy populations: A systematic review and meta-analysis. PMID 37924980.

07/15/2026

Chronic low back pain is defined as back pain that lasts for three months or longer. It affects millions of adults and is one of the leading causes of disability worldwide. It’s estimated that more

07/15/2026

Strength training lowers death risk. The benefit caps at about two hours a week.

A new analysis pooled three Harvard cohorts. 147,374 adults. Up to 30 years of follow-up. 35,798 deaths. Resistance training time was self-reported repeatedly across the follow-up window. The analysis is observational, which means it cannot prove causation. It can map the dose-response curve, and the shape of that curve is the entire point.

The shape is consistent across every major cause of death. Risk drops fast as weekly training rises from zero. By 60 minutes a week, most of the benefit has already happened. By 120 minutes a week, the curve goes flat. Past two hours, more lifting did not produce further reductions in any outcome the study measured. At the plateau, compared to no resistance training, all-cause death was 13% lower. Cardiovascular death was 19% lower. Neurological death was 27% lower. Cancer was the only outcome that did not follow the same curve. The cancer benefit appeared only at low volumes (1 to 59 minutes per week) at 9 to 12% lower risk, and by the time training crossed two hours, that signal was gone.

This is where the broader literature matters, because the Zhang paper is not an outlier. It is the largest cohort to date to confirm a curve that pooled data was already showing four years ago. Shailendra et al. (2022, Am J Prev Med) ran a meta-analysis of 10 prior studies looking at this exact question. They reported a 15% reduction in all-cause mortality from any resistance training, with a peak benefit of 27% reduction at around 60 minutes per week, and explicitly noted that reductions diminished at higher volumes. Same curve. Same plateau. Same peak benefit window. The Zhang 2026 analysis confirms the shape with a sample size more than ten times larger and a follow-up window long enough to capture neurological mortality, which prior cohorts were underpowered to detect.

This consistency matters because the field has had a quiet running disagreement about whether resistance training's mortality benefit is real or whether it is mostly a marker of people who are generally more health-conscious. The shape of the curve is the strongest argument against the marker hypothesis. If the relationship were purely confounded by lifestyle, you would not expect a clean, replicable dose-response with a plateau at the same time window across independent cohorts. You would expect the benefit to track total exercise volume and not flatten. It does flatten. And it flattens in the same place every time.

Adults who layered meaningful aerobic exercise on top of their resistance training saw the largest reductions in this analysis, up to 47% lower all-cause death at the high end of combined volume. This is also consistent with the broader literature. Every major cohort that has looked at combined activity has found that aerobic plus resistance outperforms either alone, often by a large margin. The lifting plateau is a real ceiling on what more strength training can buy you. It is not a ceiling on what more total exercise can buy you.

The mechanistic reading is that resistance training and aerobic training drive partly overlapping and partly distinct biology. Resistance training is doing most of its work on muscle mass, insulin signaling, glycemic control, and skeletal strength. Those adaptations saturate. The marginal lifter going from zero to two hours a week gains them. The marginal lifter going from two to four hours a week has already captured them. Aerobic training drives cardiac output, mitochondrial density, endothelial function, and VO2 max. Those pathways do not saturate at the same training volume. The combined effect on mortality is larger than either alone because the two stimuli are not doing the same job.

The minimum effective dose for the survival benefit of lifting is closer to 60 minutes a week than to the 150 minutes the guidelines push. The optimal dose is about two hours. Past two hours a week, hours four through ten are doing something for your physique, your strength, your enjoyment, your performance. They are not doing anything additional for your death risk in this dataset. If your goal is longevity rather than performance, two hours a week of lifting plus 150 to 300 minutes a week of moderate aerobic activity is the combination the data supports.

This is observational data. Self-reported exercise time is noisy. The cohorts skew toward US health professionals, which means the population is healthier and more educated than the general population. The study measured time, not intensity, exercise selection, or program design. The 47% figure for the combined group is the upper bound and applies to high aerobic volumes. The 13/19/27% reductions for lifting alone at two hours a week are the more defensible numbers.

Lifting cuts death risk. The benefit plateaus at around two hours a week. The way to move the number further is to stack cardio on top, not more sets.

Zhang et al., Br J Sports Med, 2026
Shailendra et al., Am J Prev Med, 2022

07/06/2026

Interesting way to tan!

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