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    <title>Liczbnik.pl — Blog (English)</title>
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    <description>Articles about taxes, salaries, loans and personal finance in Poland</description>
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    <lastBuildDate>Wed, 01 Jul 2026 00:00:00 GMT</lastBuildDate>
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      <title><![CDATA[FFMI — What It Means and How to Calculate It | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/wskaznik-ffmi-co-oznacza-i-jak-go-liczyc</link>
      <description><![CDATA[FFMI is a fat-free mass index used by trainers and bodybuilders. Check the formula, reference ranges for men and women, and a worked example.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Lactate Threshold in Running — What It Is and How to Raise It | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/prog-mleczanowy-w-bieganiu-jak-go-podniesc</link>
      <description><![CDATA[Lactate threshold determines how long you can sustain a fast pace while running. Learn how to estimate it, train it, and use it when planning races.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Cutting Diet — How to Set Calories and Macros | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/dieta-redukcyjna-jak-ulozyc-kalorie-i-makro</link>
      <description><![CDATA[A cutting diet is a controlled calorie deficit with adequate protein intake. See how to calculate calories and macros and avoid the most common mistakes.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Vitamin D Supplementation — Dosage and Rules | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/suplementacja-witamina-d-dawkowanie-i-zasady</link>
      <description><![CDATA[Vitamin D affects bones, immunity, and muscles. Check recommended doses for adults, when to supplement, and what to look for when choosing a product.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Spine Health for Desk Jobs — How to Take Care of It | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/zdrowie-kregoslupa-przy-pracy-siedzacej</link>
      <description><![CDATA[Sitting all day strains the spine and weakens postural muscles. Learn how to set up your workstation, which exercises help, and when to take breaks.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Strength Training for Beginners — How to Build a Plan | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/trening-silowy-dla-poczatkujacych-jak-ulozyc-plan</link>
      <description><![CDATA[Your first strength training plan doesn't need to be complicated. Learn how to choose exercises, sets, and load to safely start building strength.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[How Many Calories You Burn in Yoga and Pilates — Compared | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/kalorie-spalane-na-jodze-i-pilates</link>
      <description><![CDATA[Yoga and Pilates differ in intensity and calorie burn. See how many calories an hour of each class burns and what benefits both forms of training offer.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Sleep and Athletic Recovery — How to Sleep to Make Progress | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/sen-a-regeneracja-sportowca-jak-spac-by-progresowac</link>
      <description><![CDATA[Sleep is a key part of post-workout recovery. See how much sleep physically active people need and how a lack of it affects athletic performance.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[HIIT — Is Interval Training Worth It and How to Start | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/hiit-czy-warto-trenowac-interwalowo</link>
      <description><![CDATA[HIIT is high-intensity interval training. See how it works, how many calories it burns, and how to safely start interval training today.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Exercise and Heart Health — How to Train Safely | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/trening-a-choroby-serca-jak-bezpiecznie-cwiczyc</link>
      <description><![CDATA[Physical activity supports cardiovascular health, but it requires a sensible approach. Learn how to choose training intensity and when to get your heart checked.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Coulomb's Law — Formula, Units and Worked Examples]]></title>
      <link>https://liczbnik.pl/en/blog/prawo-coulomba-wzor-i-przyklady-obliczen</link>
      <description><![CDATA[Coulomb's law describes the force between electric charges. Learn the formula, the constant k, and a step-by-step numerical example for 2026.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Entropy — Basics, Formula and Examples in Physics 2026]]></title>
      <link>https://liczbnik.pl/en/blog/entropia-podstawy-co-to-jest-i-jak-obliczyc</link>
      <description><![CDATA[What is entropy and how do you calculate it? We explain the second law of thermodynamics, Boltzmann's formula, and entropy using simple physical examples for 2026.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Adopting a Dog from a Shelter — Costs and Formalities 2026]]></title>
      <link>https://liczbnik.pl/en/blog/adopcja-psa-ze-schroniska-koszty-i-formalnosci</link>
      <description><![CDATA[How much does it cost to adopt a dog from a shelter and what formalities are involved? Check the fees, requirements, and the cost of keeping a dog after adoption.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Purebred Cats vs Mixed-Breed Cats — Cost of Upkeep 2026]]></title>
      <link>https://liczbnik.pl/en/blog/koty-rasowe-vs-mieszance-koszty-utrzymania</link>
      <description><![CDATA[Does a purebred cat cost more to keep than a mixed-breed one? We compare purchase price, vet care, food, grooming and insurance for 2026.]]></description>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Buying Property in Poland: Expat Guide | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/buying-property-poland-expat-guide</link>
      <description><![CDATA[How foreigners buy property in Poland: permit rules, PCC transfer tax, notary deed, costs and the step-by-step process for a safe purchase.]]></description>
      <pubDate>Tue, 30 Jun 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Income Tax for Expats in Poland 2026 | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/poland-income-tax-expats-2026</link>
      <description><![CDATA[Polish PIT for expats in 2026: tax residency rules, the 12 and 32 percent rates, double-taxation treaties and how to file your annual return.]]></description>
      <pubDate>Tue, 30 Jun 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Renting an Apartment in Poland: Guide | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/renting-apartment-poland-guide</link>
      <description><![CDATA[Renting in Poland for expats: lease contracts, tenant rights, security deposits, occasional tenancy and what to check before you sign.]]></description>
      <pubDate>Tue, 30 Jun 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Opening a JDG Sole Trader in Poland | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/starting-business-jdg-poland-expats</link>
      <description><![CDATA[How foreigners open a JDG sole proprietorship in Poland: eligibility, CEIDG registration, taxes, ZUS contributions and the first steps.]]></description>
      <pubDate>Tue, 30 Jun 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Work Permits in Poland for Foreigners | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/work-permit-poland-foreigners</link>
      <description><![CDATA[Work permits in Poland explained: oswiadczenie declaration, zezwolenie work permit, EU rules and what employers and foreign workers must do.]]></description>
      <pubDate>Tue, 30 Jun 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[NFZ Health Insurance in Poland: How to Register | Liczbnik]]></title>
      <link>https://liczbnik.pl/en/blog/nfz-health-insurance-poland-registration</link>
      <description><![CDATA[Registering with NFZ public health insurance in Poland: who is covered, how contributions work, choosing a GP and accessing free treatment.]]></description>
      <pubDate>Tue, 30 Jun 2026 00:00:00 GMT</pubDate>
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